Home / 31,543.92-47,260.20-28,111.68

Finding the Fourth Proportional to 31,543.92, 47,260.20 and 28,111.68

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Solution

The fourth proportional to 31,543.92, 47,260.20 and 28,111.68 is: 42,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.92 : 47,260.20 = 28,111.68 : x
  2. Step 2: Convert to fraction form
    31,543.92/47,260.20 = 28,111.68/x
  3. Step 3: Cross multiply
    31,543.92x = 47,260.20 × 28,111.68
  4. Step 4: Simplify right side
    31,543.92x = 1,328,563,619.14
  5. Step 5: Solve for x
    x = 1,328,563,619.14/31,543.92
  6. Step 6: Final answer
    x = 42,117.90

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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.