Home / 38,445.68-53,055.42-21,449.78

Finding the Fourth Proportional to 38,445.68, 53,055.42 and 21,449.78

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Solution

The fourth proportional to 38,445.68, 53,055.42 and 21,449.78 is: 29,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.68 : 53,055.42 = 21,449.78 : x
  2. Step 2: Convert to fraction form
    38,445.68/53,055.42 = 21,449.78/x
  3. Step 3: Cross multiply
    38,445.68x = 53,055.42 × 21,449.78
  4. Step 4: Simplify right side
    38,445.68x = 1,138,027,086.81
  5. Step 5: Solve for x
    x = 1,138,027,086.81/38,445.68
  6. Step 6: Final answer
    x = 29,600.91

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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.