Home / 21,810.54-30,090.72-14,261.19

Finding the Fourth Proportional to 21,810.54, 30,090.72 and 14,261.19

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Solution

The fourth proportional to 21,810.54, 30,090.72 and 14,261.19 is: 19,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.54 : 30,090.72 = 14,261.19 : x
  2. Step 2: Convert to fraction form
    21,810.54/30,090.72 = 14,261.19/x
  3. Step 3: Cross multiply
    21,810.54x = 30,090.72 × 14,261.19
  4. Step 4: Simplify right side
    21,810.54x = 429,129,475.16
  5. Step 5: Solve for x
    x = 429,129,475.16/21,810.54
  6. Step 6: Final answer
    x = 19,675.33

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Half scale
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Double scale
Find fourth proportional to 21,811.54, 30,092.10 and 14,262.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.