Home / 21,380.16-32,053.68-14,787.28

Finding the Fourth Proportional to 21,380.16, 32,053.68 and 14,787.28

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Solution

The fourth proportional to 21,380.16, 32,053.68 and 14,787.28 is: 22,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.16 : 32,053.68 = 14,787.28 : x
  2. Step 2: Convert to fraction form
    21,380.16/32,053.68 = 14,787.28/x
  3. Step 3: Cross multiply
    21,380.16x = 32,053.68 × 14,787.28
  4. Step 4: Simplify right side
    21,380.16x = 473,986,741.19
  5. Step 5: Solve for x
    x = 473,986,741.19/21,380.16
  6. Step 6: Final answer
    x = 22,169.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.