Home / 38,542.12-53,181.18-21,546.70

Finding the Fourth Proportional to 38,542.12, 53,181.18 and 21,546.70

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Solution

The fourth proportional to 38,542.12, 53,181.18 and 21,546.70 is: 29,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,542.12 : 53,181.18 = 21,546.70 : x
  2. Step 2: Convert to fraction form
    38,542.12/53,181.18 = 21,546.70/x
  3. Step 3: Cross multiply
    38,542.12x = 53,181.18 × 21,546.70
  4. Step 4: Simplify right side
    38,542.12x = 1,145,878,931.11
  5. Step 5: Solve for x
    x = 1,145,878,931.11/38,542.12
  6. Step 6: Final answer
    x = 29,730.56

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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.