Home / 22,332.47-30,812.80-12,770.39

Finding the Fourth Proportional to 22,332.47, 30,812.80 and 12,770.39

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Solution

The fourth proportional to 22,332.47, 30,812.80 and 12,770.39 is: 17,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,332.47 : 30,812.80 = 12,770.39 : x
  2. Step 2: Convert to fraction form
    22,332.47/30,812.80 = 12,770.39/x
  3. Step 3: Cross multiply
    22,332.47x = 30,812.80 × 12,770.39
  4. Step 4: Simplify right side
    22,332.47x = 393,491,419.46
  5. Step 5: Solve for x
    x = 393,491,419.46/22,332.47
  6. Step 6: Final answer
    x = 17,619.70

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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.