Home / 38,115.36-52,592.40-21,345.12

Finding the Fourth Proportional to 38,115.36, 52,592.40 and 21,345.12

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Solution

The fourth proportional to 38,115.36, 52,592.40 and 21,345.12 is: 29,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.36 : 52,592.40 = 21,345.12 : x
  2. Step 2: Convert to fraction form
    38,115.36/52,592.40 = 21,345.12/x
  3. Step 3: Cross multiply
    38,115.36x = 52,592.40 × 21,345.12
  4. Step 4: Simplify right side
    38,115.36x = 1,122,591,089.09
  5. Step 5: Solve for x
    x = 1,122,591,089.09/38,115.36
  6. Step 6: Final answer
    x = 29,452.46

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Double scale
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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.