Home / 25,742.40-38,590.56-13,416

Finding the Fourth Proportional to 25,742.40, 38,590.56 and 13,416

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Solution

The fourth proportional to 25,742.40, 38,590.56 and 13,416 is: 20,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.40 : 38,590.56 = 13,416 : x
  2. Step 2: Convert to fraction form
    25,742.40/38,590.56 = 13,416/x
  3. Step 3: Cross multiply
    25,742.40x = 38,590.56 × 13,416
  4. Step 4: Simplify right side
    25,742.40x = 517,730,952.96
  5. Step 5: Solve for x
    x = 517,730,952.96/25,742.40
  6. Step 6: Final answer
    x = 20,111.99

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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.