Home / 28,296.18-42,443.06-8,573.90

Finding the Fourth Proportional to 28,296.18, 42,443.06 and 8,573.90

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Solution

The fourth proportional to 28,296.18, 42,443.06 and 8,573.90 is: 12,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.18 : 42,443.06 = 8,573.90 : x
  2. Step 2: Convert to fraction form
    28,296.18/42,443.06 = 8,573.90/x
  3. Step 3: Cross multiply
    28,296.18x = 42,443.06 × 8,573.90
  4. Step 4: Simplify right side
    28,296.18x = 363,902,297.05
  5. Step 5: Solve for x
    x = 363,902,297.05/28,296.18
  6. Step 6: Final answer
    x = 12,860.47

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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.