Home / 28,305.52-42,465.57-10,765.78

Finding the Fourth Proportional to 28,305.52, 42,465.57 and 10,765.78

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Solution

The fourth proportional to 28,305.52, 42,465.57 and 10,765.78 is: 16,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.52 : 42,465.57 = 10,765.78 : x
  2. Step 2: Convert to fraction form
    28,305.52/42,465.57 = 10,765.78/x
  3. Step 3: Cross multiply
    28,305.52x = 42,465.57 × 10,765.78
  4. Step 4: Simplify right side
    28,305.52x = 457,174,837.66
  5. Step 5: Solve for x
    x = 457,174,837.66/28,305.52
  6. Step 6: Final answer
    x = 16,151.44

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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.