Home / 30,838.56-42,557.18-16,691.38

Finding the Fourth Proportional to 30,838.56, 42,557.18 and 16,691.38

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Solution

The fourth proportional to 30,838.56, 42,557.18 and 16,691.38 is: 23,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.56 : 42,557.18 = 16,691.38 : x
  2. Step 2: Convert to fraction form
    30,838.56/42,557.18 = 16,691.38/x
  3. Step 3: Cross multiply
    30,838.56x = 42,557.18 × 16,691.38
  4. Step 4: Simplify right side
    30,838.56x = 710,338,063.11
  5. Step 5: Solve for x
    x = 710,338,063.11/30,838.56
  6. Step 6: Final answer
    x = 23,034.09

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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.