Home / 38,837.20-58,255.80-11,135.20

Finding the Fourth Proportional to 38,837.20, 58,255.80 and 11,135.20

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Solution

The fourth proportional to 38,837.20, 58,255.80 and 11,135.20 is: 16,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,837.20 : 58,255.80 = 11,135.20 : x
  2. Step 2: Convert to fraction form
    38,837.20/58,255.80 = 11,135.20/x
  3. Step 3: Cross multiply
    38,837.20x = 58,255.80 × 11,135.20
  4. Step 4: Simplify right side
    38,837.20x = 648,689,984.16
  5. Step 5: Solve for x
    x = 648,689,984.16/38,837.20
  6. Step 6: Final answer
    x = 16,702.80

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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.