Home / 30,725.18-42,399.13-17,295.98

Finding the Fourth Proportional to 30,725.18, 42,399.13 and 17,295.98

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Solution

The fourth proportional to 30,725.18, 42,399.13 and 17,295.98 is: 23,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,725.18 : 42,399.13 = 17,295.98 : x
  2. Step 2: Convert to fraction form
    30,725.18/42,399.13 = 17,295.98/x
  3. Step 3: Cross multiply
    30,725.18x = 42,399.13 × 17,295.98
  4. Step 4: Simplify right side
    30,725.18x = 733,334,711.61
  5. Step 5: Solve for x
    x = 733,334,711.61/30,725.18
  6. Step 6: Final answer
    x = 23,867.55

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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.