Home / 25,423.28-35,084.08-15,487.28

Finding the Fourth Proportional to 25,423.28, 35,084.08 and 15,487.28

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Solution

The fourth proportional to 25,423.28, 35,084.08 and 15,487.28 is: 21,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,423.28 : 35,084.08 = 15,487.28 : x
  2. Step 2: Convert to fraction form
    25,423.28/35,084.08 = 15,487.28/x
  3. Step 3: Cross multiply
    25,423.28x = 35,084.08 × 15,487.28
  4. Step 4: Simplify right side
    25,423.28x = 543,356,970.50
  5. Step 5: Solve for x
    x = 543,356,970.50/25,423.28
  6. Step 6: Final answer
    x = 21,372.42

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1.5x scale

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.