Home / 20,723.92-31,062.48-19,062.88

Finding the Fourth Proportional to 20,723.92, 31,062.48 and 19,062.88

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Solution

The fourth proportional to 20,723.92, 31,062.48 and 19,062.88 is: 28,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.92 : 31,062.48 = 19,062.88 : x
  2. Step 2: Convert to fraction form
    20,723.92/31,062.48 = 19,062.88/x
  3. Step 3: Cross multiply
    20,723.92x = 31,062.48 × 19,062.88
  4. Step 4: Simplify right side
    20,723.92x = 592,140,328.74
  5. Step 5: Solve for x
    x = 592,140,328.74/20,723.92
  6. Step 6: Final answer
    x = 28,572.80

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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.