Home / 21,051.42-29,050.23-12,549.15

Finding the Fourth Proportional to 21,051.42, 29,050.23 and 12,549.15

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Solution

The fourth proportional to 21,051.42, 29,050.23 and 12,549.15 is: 17,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.42 : 29,050.23 = 12,549.15 : x
  2. Step 2: Convert to fraction form
    21,051.42/29,050.23 = 12,549.15/x
  3. Step 3: Cross multiply
    21,051.42x = 29,050.23 × 12,549.15
  4. Step 4: Simplify right side
    21,051.42x = 364,555,693.80
  5. Step 5: Solve for x
    x = 364,555,693.80/21,051.42
  6. Step 6: Final answer
    x = 17,317.39

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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.