Home / 30,960.29-42,724.75-17,531.19

Finding the Fourth Proportional to 30,960.29, 42,724.75 and 17,531.19

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Solution

The fourth proportional to 30,960.29, 42,724.75 and 17,531.19 is: 24,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.29 : 42,724.75 = 17,531.19 : x
  2. Step 2: Convert to fraction form
    30,960.29/42,724.75 = 17,531.19/x
  3. Step 3: Cross multiply
    30,960.29x = 42,724.75 × 17,531.19
  4. Step 4: Simplify right side
    30,960.29x = 749,015,709.95
  5. Step 5: Solve for x
    x = 749,015,709.95/30,960.29
  6. Step 6: Final answer
    x = 24,192.79

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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.