Home / 28,279.73-39,052.07-18,225.46

Finding the Fourth Proportional to 28,279.73, 39,052.07 and 18,225.46

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Solution

The fourth proportional to 28,279.73, 39,052.07 and 18,225.46 is: 25,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.73 : 39,052.07 = 18,225.46 : x
  2. Step 2: Convert to fraction form
    28,279.73/39,052.07 = 18,225.46/x
  3. Step 3: Cross multiply
    28,279.73x = 39,052.07 × 18,225.46
  4. Step 4: Simplify right side
    28,279.73x = 711,741,848.59
  5. Step 5: Solve for x
    x = 711,741,848.59/28,279.73
  6. Step 6: Final answer
    x = 25,167.91

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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.