Home / 22,589.24-31,174.35-12,518.78

Finding the Fourth Proportional to 22,589.24, 31,174.35 and 12,518.78

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Solution

The fourth proportional to 22,589.24, 31,174.35 and 12,518.78 is: 17,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,589.24 : 31,174.35 = 12,518.78 : x
  2. Step 2: Convert to fraction form
    22,589.24/31,174.35 = 12,518.78/x
  3. Step 3: Cross multiply
    22,589.24x = 31,174.35 × 12,518.78
  4. Step 4: Simplify right side
    22,589.24x = 390,264,829.29
  5. Step 5: Solve for x
    x = 390,264,829.29/22,589.24
  6. Step 6: Final answer
    x = 17,276.58

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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.