Home / 20,335.06-28,063.47-11,382.52

Finding the Fourth Proportional to 20,335.06, 28,063.47 and 11,382.52

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Solution

The fourth proportional to 20,335.06, 28,063.47 and 11,382.52 is: 15,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.06 : 28,063.47 = 11,382.52 : x
  2. Step 2: Convert to fraction form
    20,335.06/28,063.47 = 11,382.52/x
  3. Step 3: Cross multiply
    20,335.06x = 28,063.47 × 11,382.52
  4. Step 4: Simplify right side
    20,335.06x = 319,433,008.54
  5. Step 5: Solve for x
    x = 319,433,008.54/20,335.06
  6. Step 6: Final answer
    x = 15,708.49

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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.