Home / 21,060.02-31,562.70-8,565.50

Finding the Fourth Proportional to 21,060.02, 31,562.70 and 8,565.50

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Solution

The fourth proportional to 21,060.02, 31,562.70 and 8,565.50 is: 12,837.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.02 : 31,562.70 = 8,565.50 : x
  2. Step 2: Convert to fraction form
    21,060.02/31,562.70 = 8,565.50/x
  3. Step 3: Cross multiply
    21,060.02x = 31,562.70 × 8,565.50
  4. Step 4: Simplify right side
    21,060.02x = 270,350,306.85
  5. Step 5: Solve for x
    x = 270,350,306.85/21,060.02
  6. Step 6: Final answer
    x = 12,837.13

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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.