Home / 22,657.20-31,265.85-12,586.29

Finding the Fourth Proportional to 22,657.20, 31,265.85 and 12,586.29

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Solution

The fourth proportional to 22,657.20, 31,265.85 and 12,586.29 is: 17,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.20 : 31,265.85 = 12,586.29 : x
  2. Step 2: Convert to fraction form
    22,657.20/31,265.85 = 12,586.29/x
  3. Step 3: Cross multiply
    22,657.20x = 31,265.85 × 12,586.29
  4. Step 4: Simplify right side
    22,657.20x = 393,521,055.20
  5. Step 5: Solve for x
    x = 393,521,055.20/22,657.20
  6. Step 6: Final answer
    x = 17,368.48

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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.