Home / 38,129.40-52,617.20-21,134.39

Finding the Fourth Proportional to 38,129.40, 52,617.20 and 21,134.39

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Solution

The fourth proportional to 38,129.40, 52,617.20 and 21,134.39 is: 29,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.40 : 52,617.20 = 21,134.39 : x
  2. Step 2: Convert to fraction form
    38,129.40/52,617.20 = 21,134.39/x
  3. Step 3: Cross multiply
    38,129.40x = 52,617.20 × 21,134.39
  4. Step 4: Simplify right side
    38,129.40x = 1,112,032,056.75
  5. Step 5: Solve for x
    x = 1,112,032,056.75/38,129.40
  6. Step 6: Final answer
    x = 29,164.69

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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.