Home / 43,387.86-59,857.56-28,275

Finding the Fourth Proportional to 43,387.86, 59,857.56 and 28,275

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Solution

The fourth proportional to 43,387.86, 59,857.56 and 28,275 is: 39,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.86 : 59,857.56 = 28,275 : x
  2. Step 2: Convert to fraction form
    43,387.86/59,857.56 = 28,275/x
  3. Step 3: Cross multiply
    43,387.86x = 59,857.56 × 28,275
  4. Step 4: Simplify right side
    43,387.86x = 1,692,472,509
  5. Step 5: Solve for x
    x = 1,692,472,509/43,387.86
  6. Step 6: Final answer
    x = 39,007.97

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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.