Home / 25,219.17-34,802.55-15,147.78

Finding the Fourth Proportional to 25,219.17, 34,802.55 and 15,147.78

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Solution

The fourth proportional to 25,219.17, 34,802.55 and 15,147.78 is: 20,903.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,219.17 : 34,802.55 = 15,147.78 : x
  2. Step 2: Convert to fraction form
    25,219.17/34,802.55 = 15,147.78/x
  3. Step 3: Cross multiply
    25,219.17x = 34,802.55 × 15,147.78
  4. Step 4: Simplify right side
    25,219.17x = 527,181,370.84
  5. Step 5: Solve for x
    x = 527,181,370.84/25,219.17
  6. Step 6: Final answer
    x = 20,903.99

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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.