Home / 38,899.38-53,677.95-21,898.19

Finding the Fourth Proportional to 38,899.38, 53,677.95 and 21,898.19

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Solution

The fourth proportional to 38,899.38, 53,677.95 and 21,898.19 is: 30,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,899.38 : 53,677.95 = 21,898.19 : x
  2. Step 2: Convert to fraction form
    38,899.38/53,677.95 = 21,898.19/x
  3. Step 3: Cross multiply
    38,899.38x = 53,677.95 × 21,898.19
  4. Step 4: Simplify right side
    38,899.38x = 1,175,449,947.91
  5. Step 5: Solve for x
    x = 1,175,449,947.91/38,899.38
  6. Step 6: Final answer
    x = 30,217.70

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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.