Home / 22,679.48-31,176.61-20,264.12

Finding the Fourth Proportional to 22,679.48, 31,176.61 and 20,264.12

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Solution

The fourth proportional to 22,679.48, 31,176.61 and 20,264.12 is: 27,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.48 : 31,176.61 = 20,264.12 : x
  2. Step 2: Convert to fraction form
    22,679.48/31,176.61 = 20,264.12/x
  3. Step 3: Cross multiply
    22,679.48x = 31,176.61 × 20,264.12
  4. Step 4: Simplify right side
    22,679.48x = 631,766,566.23
  5. Step 5: Solve for x
    x = 631,766,566.23/22,679.48
  6. Step 6: Final answer
    x = 27,856.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.