Home / 38,419.25-53,016.53-21,425.24

Finding the Fourth Proportional to 38,419.25, 53,016.53 and 21,425.24

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Solution

The fourth proportional to 38,419.25, 53,016.53 and 21,425.24 is: 29,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.25 : 53,016.53 = 21,425.24 : x
  2. Step 2: Convert to fraction form
    38,419.25/53,016.53 = 21,425.24/x
  3. Step 3: Cross multiply
    38,419.25x = 53,016.53 × 21,425.24
  4. Step 4: Simplify right side
    38,419.25x = 1,135,891,904.63
  5. Step 5: Solve for x
    x = 1,135,891,904.63/38,419.25
  6. Step 6: Final answer
    x = 29,565.70

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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.