Home / 38,899.64-58,272.78-20,191.88

Finding the Fourth Proportional to 38,899.64, 58,272.78 and 20,191.88

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Solution

The fourth proportional to 38,899.64, 58,272.78 and 20,191.88 is: 30,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,899.64 : 58,272.78 = 20,191.88 : x
  2. Step 2: Convert to fraction form
    38,899.64/58,272.78 = 20,191.88/x
  3. Step 3: Cross multiply
    38,899.64x = 58,272.78 × 20,191.88
  4. Step 4: Simplify right side
    38,899.64x = 1,176,636,981.03
  5. Step 5: Solve for x
    x = 1,176,636,981.03/38,899.64
  6. Step 6: Final answer
    x = 30,248.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.