Home / 21,487.64-29,654.25-14,305.16

Finding the Fourth Proportional to 21,487.64, 29,654.25 and 14,305.16

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Solution

The fourth proportional to 21,487.64, 29,654.25 and 14,305.16 is: 19,741.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.64 : 29,654.25 = 14,305.16 : x
  2. Step 2: Convert to fraction form
    21,487.64/29,654.25 = 14,305.16/x
  3. Step 3: Cross multiply
    21,487.64x = 29,654.25 × 14,305.16
  4. Step 4: Simplify right side
    21,487.64x = 424,208,790.93
  5. Step 5: Solve for x
    x = 424,208,790.93/21,487.64
  6. Step 6: Final answer
    x = 19,741.99

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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.