Home / 22,489.24-31,034.80-12,418.68

Finding the Fourth Proportional to 22,489.24, 31,034.80 and 12,418.68

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Solution

The fourth proportional to 22,489.24, 31,034.80 and 12,418.68 is: 17,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.24 : 31,034.80 = 12,418.68 : x
  2. Step 2: Convert to fraction form
    22,489.24/31,034.80 = 12,418.68/x
  3. Step 3: Cross multiply
    22,489.24x = 31,034.80 × 12,418.68
  4. Step 4: Simplify right side
    22,489.24x = 385,411,250.06
  5. Step 5: Solve for x
    x = 385,411,250.06/22,489.24
  6. Step 6: Final answer
    x = 17,137.58

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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.