Home / 25,492.79-35,182.43-15,423.70

Finding the Fourth Proportional to 25,492.79, 35,182.43 and 15,423.70

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Solution

The fourth proportional to 25,492.79, 35,182.43 and 15,423.70 is: 21,286.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,492.79 : 35,182.43 = 15,423.70 : x
  2. Step 2: Convert to fraction form
    25,492.79/35,182.43 = 15,423.70/x
  3. Step 3: Cross multiply
    25,492.79x = 35,182.43 × 15,423.70
  4. Step 4: Simplify right side
    25,492.79x = 542,643,245.59
  5. Step 5: Solve for x
    x = 542,643,245.59/25,492.79
  6. Step 6: Final answer
    x = 21,286.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.