Home / 21,814.49-30,104.93-12,383.93

Finding the Fourth Proportional to 21,814.49, 30,104.93 and 12,383.93

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Solution

The fourth proportional to 21,814.49, 30,104.93 and 12,383.93 is: 17,090.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,814.49 : 30,104.93 = 12,383.93 : x
  2. Step 2: Convert to fraction form
    21,814.49/30,104.93 = 12,383.93/x
  3. Step 3: Cross multiply
    21,814.49x = 30,104.93 × 12,383.93
  4. Step 4: Simplify right side
    21,814.49x = 372,817,345.77
  5. Step 5: Solve for x
    x = 372,817,345.77/21,814.49
  6. Step 6: Final answer
    x = 17,090.35

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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.