Home / 38,115.92-52,598.57-21,120.90

Finding the Fourth Proportional to 38,115.92, 52,598.57 and 21,120.90

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Solution

The fourth proportional to 38,115.92, 52,598.57 and 21,120.90 is: 29,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.92 : 52,598.57 = 21,120.90 : x
  2. Step 2: Convert to fraction form
    38,115.92/52,598.57 = 21,120.90/x
  3. Step 3: Cross multiply
    38,115.92x = 52,598.57 × 21,120.90
  4. Step 4: Simplify right side
    38,115.92x = 1,110,929,130.13
  5. Step 5: Solve for x
    x = 1,110,929,130.13/38,115.92
  6. Step 6: Final answer
    x = 29,146.07

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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.