Home / 30,376.31-41,919.17-16,947.57

Finding the Fourth Proportional to 30,376.31, 41,919.17 and 16,947.57

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Solution

The fourth proportional to 30,376.31, 41,919.17 and 16,947.57 is: 23,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.31 : 41,919.17 = 16,947.57 : x
  2. Step 2: Convert to fraction form
    30,376.31/41,919.17 = 16,947.57/x
  3. Step 3: Cross multiply
    30,376.31x = 41,919.17 × 16,947.57
  4. Step 4: Simplify right side
    30,376.31x = 710,428,140.38
  5. Step 5: Solve for x
    x = 710,428,140.38/30,376.31
  6. Step 6: Final answer
    x = 23,387.58

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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.