Home / 22,572.75-31,155.57-15,019.40

Finding the Fourth Proportional to 22,572.75, 31,155.57 and 15,019.40

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Solution

The fourth proportional to 22,572.75, 31,155.57 and 15,019.40 is: 20,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,572.75 : 31,155.57 = 15,019.40 : x
  2. Step 2: Convert to fraction form
    22,572.75/31,155.57 = 15,019.40/x
  3. Step 3: Cross multiply
    22,572.75x = 31,155.57 × 15,019.40
  4. Step 4: Simplify right side
    22,572.75x = 467,937,812.28
  5. Step 5: Solve for x
    x = 467,937,812.28/22,572.75
  6. Step 6: Final answer
    x = 20,730.21

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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.