Home / 28,126.05-42,193.17-10,365.21

Finding the Fourth Proportional to 28,126.05, 42,193.17 and 10,365.21

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Solution

The fourth proportional to 28,126.05, 42,193.17 and 10,365.21 is: 15,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.05 : 42,193.17 = 10,365.21 : x
  2. Step 2: Convert to fraction form
    28,126.05/42,193.17 = 10,365.21/x
  3. Step 3: Cross multiply
    28,126.05x = 42,193.17 × 10,365.21
  4. Step 4: Simplify right side
    28,126.05x = 437,341,067.62
  5. Step 5: Solve for x
    x = 437,341,067.62/28,126.05
  6. Step 6: Final answer
    x = 15,549.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.