Home / 20,565.02-30,806.43-9,456.48

Finding the Fourth Proportional to 20,565.02, 30,806.43 and 9,456.48

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Solution

The fourth proportional to 20,565.02, 30,806.43 and 9,456.48 is: 14,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.02 : 30,806.43 = 9,456.48 : x
  2. Step 2: Convert to fraction form
    20,565.02/30,806.43 = 9,456.48/x
  3. Step 3: Cross multiply
    20,565.02x = 30,806.43 × 9,456.48
  4. Step 4: Simplify right side
    20,565.02x = 291,320,353.70
  5. Step 5: Solve for x
    x = 291,320,353.70/20,565.02
  6. Step 6: Final answer
    x = 14,165.82

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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.