Home / 25,120.43-34,710.42-19,785.97

Finding the Fourth Proportional to 25,120.43, 34,710.42 and 19,785.97

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Solution

The fourth proportional to 25,120.43, 34,710.42 and 19,785.97 is: 27,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.43 : 34,710.42 = 19,785.97 : x
  2. Step 2: Convert to fraction form
    25,120.43/34,710.42 = 19,785.97/x
  3. Step 3: Cross multiply
    25,120.43x = 34,710.42 × 19,785.97
  4. Step 4: Simplify right side
    25,120.43x = 686,779,446.39
  5. Step 5: Solve for x
    x = 686,779,446.39/25,120.43
  6. Step 6: Final answer
    x = 27,339.48

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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.