Home / 25,459.79-38,180.57-8,815.35

Finding the Fourth Proportional to 25,459.79, 38,180.57 and 8,815.35

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Solution

The fourth proportional to 25,459.79, 38,180.57 and 8,815.35 is: 13,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.79 : 38,180.57 = 8,815.35 : x
  2. Step 2: Convert to fraction form
    25,459.79/38,180.57 = 8,815.35/x
  3. Step 3: Cross multiply
    25,459.79x = 38,180.57 × 8,815.35
  4. Step 4: Simplify right side
    25,459.79x = 336,575,043.67
  5. Step 5: Solve for x
    x = 336,575,043.67/25,459.79
  6. Step 6: Final answer
    x = 13,219.87

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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.