Home / 30,672.39-42,328.07-17,243.52

Finding the Fourth Proportional to 30,672.39, 42,328.07 and 17,243.52

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Solution

The fourth proportional to 30,672.39, 42,328.07 and 17,243.52 is: 23,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.39 : 42,328.07 = 17,243.52 : x
  2. Step 2: Convert to fraction form
    30,672.39/42,328.07 = 17,243.52/x
  3. Step 3: Cross multiply
    30,672.39x = 42,328.07 × 17,243.52
  4. Step 4: Simplify right side
    30,672.39x = 729,884,921.61
  5. Step 5: Solve for x
    x = 729,884,921.61/30,672.39
  6. Step 6: Final answer
    x = 23,796.15

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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.