Home / 38,660.57-58,000.08-13,702.80

Finding the Fourth Proportional to 38,660.57, 58,000.08 and 13,702.80

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Solution

The fourth proportional to 38,660.57, 58,000.08 and 13,702.80 is: 20,557.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.57 : 58,000.08 = 13,702.80 : x
  2. Step 2: Convert to fraction form
    38,660.57/58,000.08 = 13,702.80/x
  3. Step 3: Cross multiply
    38,660.57x = 58,000.08 × 13,702.80
  4. Step 4: Simplify right side
    38,660.57x = 794,763,547.61
  5. Step 5: Solve for x
    x = 794,763,547.61/38,660.57
  6. Step 6: Final answer
    x = 20,557.47

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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.