Home / 15,125.70-22,688.55-14,979.90

Finding the Fourth Proportional to 15,125.70, 22,688.55 and 14,979.90

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Solution

The fourth proportional to 15,125.70, 22,688.55 and 14,979.90 is: 22,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.70 : 22,688.55 = 14,979.90 : x
  2. Step 2: Convert to fraction form
    15,125.70/22,688.55 = 14,979.90/x
  3. Step 3: Cross multiply
    15,125.70x = 22,688.55 × 14,979.90
  4. Step 4: Simplify right side
    15,125.70x = 339,872,210.15
  5. Step 5: Solve for x
    x = 339,872,210.15/15,125.70
  6. Step 6: Final answer
    x = 22,469.85

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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.