Home / 30,712.28-42,382.49-17,283.56

Finding the Fourth Proportional to 30,712.28, 42,382.49 and 17,283.56

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Solution

The fourth proportional to 30,712.28, 42,382.49 and 17,283.56 is: 23,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.28 : 42,382.49 = 17,283.56 : x
  2. Step 2: Convert to fraction form
    30,712.28/42,382.49 = 17,283.56/x
  3. Step 3: Cross multiply
    30,712.28x = 42,382.49 × 17,283.56
  4. Step 4: Simplify right side
    30,712.28x = 732,520,010.53
  5. Step 5: Solve for x
    x = 732,520,010.53/30,712.28
  6. Step 6: Final answer
    x = 23,851.05

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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.