Home / 25,748.28-38,585.16-12,585.78

Finding the Fourth Proportional to 25,748.28, 38,585.16 and 12,585.78

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Solution

The fourth proportional to 25,748.28, 38,585.16 and 12,585.78 is: 18,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,748.28 : 38,585.16 = 12,585.78 : x
  2. Step 2: Convert to fraction form
    25,748.28/38,585.16 = 12,585.78/x
  3. Step 3: Cross multiply
    25,748.28x = 38,585.16 × 12,585.78
  4. Step 4: Simplify right side
    25,748.28x = 485,624,335.02
  5. Step 5: Solve for x
    x = 485,624,335.02/25,748.28
  6. Step 6: Final answer
    x = 18,860.46

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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.