Home / 26,420.72-39,631.12-8,902.84

Finding the Fourth Proportional to 26,420.72, 39,631.12 and 8,902.84

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Solution

The fourth proportional to 26,420.72, 39,631.12 and 8,902.84 is: 13,354.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.72 : 39,631.12 = 8,902.84 : x
  2. Step 2: Convert to fraction form
    26,420.72/39,631.12 = 8,902.84/x
  3. Step 3: Cross multiply
    26,420.72x = 39,631.12 × 8,902.84
  4. Step 4: Simplify right side
    26,420.72x = 352,829,520.38
  5. Step 5: Solve for x
    x = 352,829,520.38/26,420.72
  6. Step 6: Final answer
    x = 13,354.27

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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.