Home / 47,421.92-65,440.10-29,280.76

Finding the Fourth Proportional to 47,421.92, 65,440.10 and 29,280.76

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Solution

The fourth proportional to 47,421.92, 65,440.10 and 29,280.76 is: 40,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,421.92 : 65,440.10 = 29,280.76 : x
  2. Step 2: Convert to fraction form
    47,421.92/65,440.10 = 29,280.76/x
  3. Step 3: Cross multiply
    47,421.92x = 65,440.10 × 29,280.76
  4. Step 4: Simplify right side
    47,421.92x = 1,916,135,772.08
  5. Step 5: Solve for x
    x = 1,916,135,772.08/47,421.92
  6. Step 6: Final answer
    x = 40,406.12

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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.