Home / 31,617.92-47,432.64-10,836.80

Finding the Fourth Proportional to 31,617.92, 47,432.64 and 10,836.80

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Solution

The fourth proportional to 31,617.92, 47,432.64 and 10,836.80 is: 16,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.92 : 47,432.64 = 10,836.80 : x
  2. Step 2: Convert to fraction form
    31,617.92/47,432.64 = 10,836.80/x
  3. Step 3: Cross multiply
    31,617.92x = 47,432.64 × 10,836.80
  4. Step 4: Simplify right side
    31,617.92x = 514,018,033.15
  5. Step 5: Solve for x
    x = 514,018,033.15/31,617.92
  6. Step 6: Final answer
    x = 16,257.17

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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.