Home / 42,833.20-64,268.12-17,878.76

Finding the Fourth Proportional to 42,833.20, 64,268.12 and 17,878.76

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Solution

The fourth proportional to 42,833.20, 64,268.12 and 17,878.76 is: 26,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,833.20 : 64,268.12 = 17,878.76 : x
  2. Step 2: Convert to fraction form
    42,833.20/64,268.12 = 17,878.76/x
  3. Step 3: Cross multiply
    42,833.20x = 64,268.12 × 17,878.76
  4. Step 4: Simplify right side
    42,833.20x = 1,149,034,293.13
  5. Step 5: Solve for x
    x = 1,149,034,293.13/42,833.20
  6. Step 6: Final answer
    x = 26,825.79

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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.