Home / 25,864.20-38,747.70-13,341.60

Finding the Fourth Proportional to 25,864.20, 38,747.70 and 13,341.60

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Solution

The fourth proportional to 25,864.20, 38,747.70 and 13,341.60 is: 19,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,864.20 : 38,747.70 = 13,341.60 : x
  2. Step 2: Convert to fraction form
    25,864.20/38,747.70 = 13,341.60/x
  3. Step 3: Cross multiply
    25,864.20x = 38,747.70 × 13,341.60
  4. Step 4: Simplify right side
    25,864.20x = 516,956,314.32
  5. Step 5: Solve for x
    x = 516,956,314.32/25,864.20
  6. Step 6: Final answer
    x = 19,987.33

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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.