Home / 38,122.60-52,607.66-21,127.57

Finding the Fourth Proportional to 38,122.60, 52,607.66 and 21,127.57

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Solution

The fourth proportional to 38,122.60, 52,607.66 and 21,127.57 is: 29,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.60 : 52,607.66 = 21,127.57 : x
  2. Step 2: Convert to fraction form
    38,122.60/52,607.66 = 21,127.57/x
  3. Step 3: Cross multiply
    38,122.60x = 52,607.66 × 21,127.57
  4. Step 4: Simplify right side
    38,122.60x = 1,111,471,756.15
  5. Step 5: Solve for x
    x = 1,111,471,756.15/38,122.60
  6. Step 6: Final answer
    x = 29,155.20

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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.