Home / 30,616.59-42,253.34-17,188.73

Finding the Fourth Proportional to 30,616.59, 42,253.34 and 17,188.73

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Solution

The fourth proportional to 30,616.59, 42,253.34 and 17,188.73 is: 23,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616.59 : 42,253.34 = 17,188.73 : x
  2. Step 2: Convert to fraction form
    30,616.59/42,253.34 = 17,188.73/x
  3. Step 3: Cross multiply
    30,616.59x = 42,253.34 × 17,188.73
  4. Step 4: Simplify right side
    30,616.59x = 726,280,955.65
  5. Step 5: Solve for x
    x = 726,280,955.65/30,616.59
  6. Step 6: Final answer
    x = 23,721.81

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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.