Home / 22,586.61-31,171.04-12,515.49

Finding the Fourth Proportional to 22,586.61, 31,171.04 and 12,515.49

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Solution

The fourth proportional to 22,586.61, 31,171.04 and 12,515.49 is: 17,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,586.61 : 31,171.04 = 12,515.49 : x
  2. Step 2: Convert to fraction form
    22,586.61/31,171.04 = 12,515.49/x
  3. Step 3: Cross multiply
    22,586.61x = 31,171.04 × 12,515.49
  4. Step 4: Simplify right side
    22,586.61x = 390,120,776.83
  5. Step 5: Solve for x
    x = 390,120,776.83/22,586.61
  6. Step 6: Final answer
    x = 17,272.21

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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.