Home / 38,288.22-52,835.10-21,291.12

Finding the Fourth Proportional to 38,288.22, 52,835.10 and 21,291.12

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Solution

The fourth proportional to 38,288.22, 52,835.10 and 21,291.12 is: 29,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.22 : 52,835.10 = 21,291.12 : x
  2. Step 2: Convert to fraction form
    38,288.22/52,835.10 = 21,291.12/x
  3. Step 3: Cross multiply
    38,288.22x = 52,835.10 × 21,291.12
  4. Step 4: Simplify right side
    38,288.22x = 1,124,918,454.31
  5. Step 5: Solve for x
    x = 1,124,918,454.31/38,288.22
  6. Step 6: Final answer
    x = 29,380.28

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Double scale
Find fourth proportional to 38,289.22, 52,836.48 and 21,292.12
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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.