Home / 28,290.97-42,440.86-8,564.84

Finding the Fourth Proportional to 28,290.97, 42,440.86 and 8,564.84

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Solution

The fourth proportional to 28,290.97, 42,440.86 and 8,564.84 is: 12,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.97 : 42,440.86 = 8,564.84 : x
  2. Step 2: Convert to fraction form
    28,290.97/42,440.86 = 8,564.84/x
  3. Step 3: Cross multiply
    28,290.97x = 42,440.86 × 8,564.84
  4. Step 4: Simplify right side
    28,290.97x = 363,499,133.02
  5. Step 5: Solve for x
    x = 363,499,133.02/28,290.97
  6. Step 6: Final answer
    x = 12,848.59

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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.