Home / 25,439.21-38,112-15,949.72

Finding the Fourth Proportional to 25,439.21, 38,112 and 15,949.72

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Solution

The fourth proportional to 25,439.21, 38,112 and 15,949.72 is: 23,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.21 : 38,112 = 15,949.72 : x
  2. Step 2: Convert to fraction form
    25,439.21/38,112 = 15,949.72/x
  3. Step 3: Cross multiply
    25,439.21x = 38,112 × 15,949.72
  4. Step 4: Simplify right side
    25,439.21x = 607,875,728.64
  5. Step 5: Solve for x
    x = 607,875,728.64/25,439.21
  6. Step 6: Final answer
    x = 23,895.23

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1.5x scale

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.