Home / 25,788.32-38,613-16,881.56

Finding the Fourth Proportional to 25,788.32, 38,613 and 16,881.56

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Solution

The fourth proportional to 25,788.32, 38,613 and 16,881.56 is: 25,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,788.32 : 38,613 = 16,881.56 : x
  2. Step 2: Convert to fraction form
    25,788.32/38,613 = 16,881.56/x
  3. Step 3: Cross multiply
    25,788.32x = 38,613 × 16,881.56
  4. Step 4: Simplify right side
    25,788.32x = 651,847,483.22
  5. Step 5: Solve for x
    x = 651,847,483.22/25,788.32
  6. Step 6: Final answer
    x = 25,276.85

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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.