Home / 26,287.85-39,398.96-13,143.98

Finding the Fourth Proportional to 26,287.85, 39,398.96 and 13,143.98

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Solution

The fourth proportional to 26,287.85, 39,398.96 and 13,143.98 is: 19,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,287.85 : 39,398.96 = 13,143.98 : x
  2. Step 2: Convert to fraction form
    26,287.85/39,398.96 = 13,143.98/x
  3. Step 3: Cross multiply
    26,287.85x = 39,398.96 × 13,143.98
  4. Step 4: Simplify right side
    26,287.85x = 517,859,273.62
  5. Step 5: Solve for x
    x = 517,859,273.62/26,287.85
  6. Step 6: Final answer
    x = 19,699.57

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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.