Home / 21,060.27-31,563.06-8,565.75

Finding the Fourth Proportional to 21,060.27, 31,563.06 and 8,565.75

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Solution

The fourth proportional to 21,060.27, 31,563.06 and 8,565.75 is: 12,837.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.27 : 31,563.06 = 8,565.75 : x
  2. Step 2: Convert to fraction form
    21,060.27/31,563.06 = 8,565.75/x
  3. Step 3: Cross multiply
    21,060.27x = 31,563.06 × 8,565.75
  4. Step 4: Simplify right side
    21,060.27x = 270,361,281.20
  5. Step 5: Solve for x
    x = 270,361,281.20/21,060.27
  6. Step 6: Final answer
    x = 12,837.50

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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.