Home / 28,580.22-42,854.67-8,853.30

Finding the Fourth Proportional to 28,580.22, 42,854.67 and 8,853.30

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Solution

The fourth proportional to 28,580.22, 42,854.67 and 8,853.30 is: 13,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.22 : 42,854.67 = 8,853.30 : x
  2. Step 2: Convert to fraction form
    28,580.22/42,854.67 = 8,853.30/x
  3. Step 3: Cross multiply
    28,580.22x = 42,854.67 × 8,853.30
  4. Step 4: Simplify right side
    28,580.22x = 379,405,249.91
  5. Step 5: Solve for x
    x = 379,405,249.91/28,580.22
  6. Step 6: Final answer
    x = 13,275.10

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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.