Home / 22,572.95-31,135.20-15,487.07

Finding the Fourth Proportional to 22,572.95, 31,135.20 and 15,487.07

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Solution

The fourth proportional to 22,572.95, 31,135.20 and 15,487.07 is: 21,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,572.95 : 31,135.20 = 15,487.07 : x
  2. Step 2: Convert to fraction form
    22,572.95/31,135.20 = 15,487.07/x
  3. Step 3: Cross multiply
    22,572.95x = 31,135.20 × 15,487.07
  4. Step 4: Simplify right side
    22,572.95x = 482,193,138.42
  5. Step 5: Solve for x
    x = 482,193,138.42/22,572.95
  6. Step 6: Final answer
    x = 21,361.54

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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.