Home / 21,607.70-32,411.55-9,125.75

Finding the Fourth Proportional to 21,607.70, 32,411.55 and 9,125.75

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Solution

The fourth proportional to 21,607.70, 32,411.55 and 9,125.75 is: 13,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.70 : 32,411.55 = 9,125.75 : x
  2. Step 2: Convert to fraction form
    21,607.70/32,411.55 = 9,125.75/x
  3. Step 3: Cross multiply
    21,607.70x = 32,411.55 × 9,125.75
  4. Step 4: Simplify right side
    21,607.70x = 295,779,702.41
  5. Step 5: Solve for x
    x = 295,779,702.41/21,607.70
  6. Step 6: Final answer
    x = 13,688.63

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Similar ratio
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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.