Home / 38,423.92-57,639.12-12,130.24

Finding the Fourth Proportional to 38,423.92, 57,639.12 and 12,130.24

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Solution

The fourth proportional to 38,423.92, 57,639.12 and 12,130.24 is: 18,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.92 : 57,639.12 = 12,130.24 : x
  2. Step 2: Convert to fraction form
    38,423.92/57,639.12 = 12,130.24/x
  3. Step 3: Cross multiply
    38,423.92x = 57,639.12 × 12,130.24
  4. Step 4: Simplify right side
    38,423.92x = 699,176,358.99
  5. Step 5: Solve for x
    x = 699,176,358.99/38,423.92
  6. Step 6: Final answer
    x = 18,196.38

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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.