Home / 30,949.29-42,696.32-18,366.75

Finding the Fourth Proportional to 30,949.29, 42,696.32 and 18,366.75

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Solution

The fourth proportional to 30,949.29, 42,696.32 and 18,366.75 is: 25,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.29 : 42,696.32 = 18,366.75 : x
  2. Step 2: Convert to fraction form
    30,949.29/42,696.32 = 18,366.75/x
  3. Step 3: Cross multiply
    30,949.29x = 42,696.32 × 18,366.75
  4. Step 4: Simplify right side
    30,949.29x = 784,192,543.53
  5. Step 5: Solve for x
    x = 784,192,543.53/30,949.29
  6. Step 6: Final answer
    x = 25,337.98

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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.