Home / 15,724.67-23,471.78-13,659.17

Finding the Fourth Proportional to 15,724.67, 23,471.78 and 13,659.17

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Solution

The fourth proportional to 15,724.67, 23,471.78 and 13,659.17 is: 20,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.67 : 23,471.78 = 13,659.17 : x
  2. Step 2: Convert to fraction form
    15,724.67/23,471.78 = 13,659.17/x
  3. Step 3: Cross multiply
    15,724.67x = 23,471.78 × 13,659.17
  4. Step 4: Simplify right side
    15,724.67x = 320,604,847.57
  5. Step 5: Solve for x
    x = 320,604,847.57/15,724.67
  6. Step 6: Final answer
    x = 20,388.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.