Home / 28,342.52-39,108.54-17,009.61

Finding the Fourth Proportional to 28,342.52, 39,108.54 and 17,009.61

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Solution

The fourth proportional to 28,342.52, 39,108.54 and 17,009.61 is: 23,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.52 : 39,108.54 = 17,009.61 : x
  2. Step 2: Convert to fraction form
    28,342.52/39,108.54 = 17,009.61/x
  3. Step 3: Cross multiply
    28,342.52x = 39,108.54 × 17,009.61
  4. Step 4: Simplify right side
    28,342.52x = 665,221,013.07
  5. Step 5: Solve for x
    x = 665,221,013.07/28,342.52
  6. Step 6: Final answer
    x = 23,470.78

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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.