Home / 39,607.16-54,657.72-21,702.14

Finding the Fourth Proportional to 39,607.16, 54,657.72 and 21,702.14

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Solution

The fourth proportional to 39,607.16, 54,657.72 and 21,702.14 is: 29,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,607.16 : 54,657.72 = 21,702.14 : x
  2. Step 2: Convert to fraction form
    39,607.16/54,657.72 = 21,702.14/x
  3. Step 3: Cross multiply
    39,607.16x = 54,657.72 × 21,702.14
  4. Step 4: Simplify right side
    39,607.16x = 1,186,189,491.52
  5. Step 5: Solve for x
    x = 1,186,189,491.52/39,607.16
  6. Step 6: Final answer
    x = 29,948.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.