Home / 28,931.12-39,932.32-16,363.16

Finding the Fourth Proportional to 28,931.12, 39,932.32 and 16,363.16

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Solution

The fourth proportional to 28,931.12, 39,932.32 and 16,363.16 is: 22,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.12 : 39,932.32 = 16,363.16 : x
  2. Step 2: Convert to fraction form
    28,931.12/39,932.32 = 16,363.16/x
  3. Step 3: Cross multiply
    28,931.12x = 39,932.32 × 16,363.16
  4. Step 4: Simplify right side
    28,931.12x = 653,418,941.33
  5. Step 5: Solve for x
    x = 653,418,941.33/28,931.12
  6. Step 6: Final answer
    x = 22,585.33

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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.