Home / 30,960.28-42,725.21-17,531.55

Finding the Fourth Proportional to 30,960.28, 42,725.21 and 17,531.55

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Solution

The fourth proportional to 30,960.28, 42,725.21 and 17,531.55 is: 24,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.28 : 42,725.21 = 17,531.55 : x
  2. Step 2: Convert to fraction form
    30,960.28/42,725.21 = 17,531.55/x
  3. Step 3: Cross multiply
    30,960.28x = 42,725.21 × 17,531.55
  4. Step 4: Simplify right side
    30,960.28x = 749,039,155.38
  5. Step 5: Solve for x
    x = 749,039,155.38/30,960.28
  6. Step 6: Final answer
    x = 24,193.55

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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.