Home / 28,250.08-42,358.64-8,522.72

Finding the Fourth Proportional to 28,250.08, 42,358.64 and 8,522.72

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Solution

The fourth proportional to 28,250.08, 42,358.64 and 8,522.72 is: 12,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.08 : 42,358.64 = 8,522.72 : x
  2. Step 2: Convert to fraction form
    28,250.08/42,358.64 = 8,522.72/x
  3. Step 3: Cross multiply
    28,250.08x = 42,358.64 × 8,522.72
  4. Step 4: Simplify right side
    28,250.08x = 361,010,828.30
  5. Step 5: Solve for x
    x = 361,010,828.30/28,250.08
  6. Step 6: Final answer
    x = 12,779.11

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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.