Home / 28,363.64-39,140.16-16,426.13

Finding the Fourth Proportional to 28,363.64, 39,140.16 and 16,426.13

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Solution

The fourth proportional to 28,363.64, 39,140.16 and 16,426.13 is: 22,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.64 : 39,140.16 = 16,426.13 : x
  2. Step 2: Convert to fraction form
    28,363.64/39,140.16 = 16,426.13/x
  3. Step 3: Cross multiply
    28,363.64x = 39,140.16 × 16,426.13
  4. Step 4: Simplify right side
    28,363.64x = 642,921,356.38
  5. Step 5: Solve for x
    x = 642,921,356.38/28,363.64
  6. Step 6: Final answer
    x = 22,667.10

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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.