Home / 19,663.20-29,470.19-15,486.72

Finding the Fourth Proportional to 19,663.20, 29,470.19 and 15,486.72

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Solution

The fourth proportional to 19,663.20, 29,470.19 and 15,486.72 is: 23,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.20 : 29,470.19 = 15,486.72 : x
  2. Step 2: Convert to fraction form
    19,663.20/29,470.19 = 15,486.72/x
  3. Step 3: Cross multiply
    19,663.20x = 29,470.19 × 15,486.72
  4. Step 4: Simplify right side
    19,663.20x = 456,396,580.88
  5. Step 5: Solve for x
    x = 456,396,580.88/19,663.20
  6. Step 6: Final answer
    x = 23,210.70

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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.