Home / 31,432.92-47,165.40-20,910.34

Finding the Fourth Proportional to 31,432.92, 47,165.40 and 20,910.34

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Solution

The fourth proportional to 31,432.92, 47,165.40 and 20,910.34 is: 31,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.92 : 47,165.40 = 20,910.34 : x
  2. Step 2: Convert to fraction form
    31,432.92/47,165.40 = 20,910.34/x
  3. Step 3: Cross multiply
    31,432.92x = 47,165.40 × 20,910.34
  4. Step 4: Simplify right side
    31,432.92x = 986,244,550.24
  5. Step 5: Solve for x
    x = 986,244,550.24/31,432.92
  6. Step 6: Final answer
    x = 31,376.17

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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.