Home / 30,981.65-42,753.29-17,552.12

Finding the Fourth Proportional to 30,981.65, 42,753.29 and 17,552.12

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Solution

The fourth proportional to 30,981.65, 42,753.29 and 17,552.12 is: 24,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.65 : 42,753.29 = 17,552.12 : x
  2. Step 2: Convert to fraction form
    30,981.65/42,753.29 = 17,552.12/x
  3. Step 3: Cross multiply
    30,981.65x = 42,753.29 × 17,552.12
  4. Step 4: Simplify right side
    30,981.65x = 750,410,574.95
  5. Step 5: Solve for x
    x = 750,410,574.95/30,981.65
  6. Step 6: Final answer
    x = 24,221.13

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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.