Home / 31,748.48-43,793.06-20,432.72

Finding the Fourth Proportional to 31,748.48, 43,793.06 and 20,432.72

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Solution

The fourth proportional to 31,748.48, 43,793.06 and 20,432.72 is: 28,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.48 : 43,793.06 = 20,432.72 : x
  2. Step 2: Convert to fraction form
    31,748.48/43,793.06 = 20,432.72/x
  3. Step 3: Cross multiply
    31,748.48x = 43,793.06 × 20,432.72
  4. Step 4: Simplify right side
    31,748.48x = 894,811,332.92
  5. Step 5: Solve for x
    x = 894,811,332.92/31,748.48
  6. Step 6: Final answer
    x = 28,184.38

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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.