Home / 38,339.59-52,909.82-20,878.08

Finding the Fourth Proportional to 38,339.59, 52,909.82 and 20,878.08

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Solution

The fourth proportional to 38,339.59, 52,909.82 and 20,878.08 is: 28,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,339.59 : 52,909.82 = 20,878.08 : x
  2. Step 2: Convert to fraction form
    38,339.59/52,909.82 = 20,878.08/x
  3. Step 3: Cross multiply
    38,339.59x = 52,909.82 × 20,878.08
  4. Step 4: Simplify right side
    38,339.59x = 1,104,655,454.75
  5. Step 5: Solve for x
    x = 1,104,655,454.75/38,339.59
  6. Step 6: Final answer
    x = 28,812.40

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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.