Home / 31,804.08-47,707.20-8,432.88

Finding the Fourth Proportional to 31,804.08, 47,707.20 and 8,432.88

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Solution

The fourth proportional to 31,804.08, 47,707.20 and 8,432.88 is: 12,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.08 : 47,707.20 = 8,432.88 : x
  2. Step 2: Convert to fraction form
    31,804.08/47,707.20 = 8,432.88/x
  3. Step 3: Cross multiply
    31,804.08x = 47,707.20 × 8,432.88
  4. Step 4: Simplify right side
    31,804.08x = 402,309,092.74
  5. Step 5: Solve for x
    x = 402,309,092.74/31,804.08
  6. Step 6: Final answer
    x = 12,649.61

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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.