Home / 22,742.55-31,387.03-12,672.63

Finding the Fourth Proportional to 22,742.55, 31,387.03 and 12,672.63

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Solution

The fourth proportional to 22,742.55, 31,387.03 and 12,672.63 is: 17,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,742.55 : 31,387.03 = 12,672.63 : x
  2. Step 2: Convert to fraction form
    22,742.55/31,387.03 = 12,672.63/x
  3. Step 3: Cross multiply
    22,742.55x = 31,387.03 × 12,672.63
  4. Step 4: Simplify right side
    22,742.55x = 397,756,186.31
  5. Step 5: Solve for x
    x = 397,756,186.31/22,742.55
  6. Step 6: Final answer
    x = 17,489.52

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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.