Home / 19,997.47-29,977.51-8,898.13

Finding the Fourth Proportional to 19,997.47, 29,977.51 and 8,898.13

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Solution

The fourth proportional to 19,997.47, 29,977.51 and 8,898.13 is: 13,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.47 : 29,977.51 = 8,898.13 : x
  2. Step 2: Convert to fraction form
    19,997.47/29,977.51 = 8,898.13/x
  3. Step 3: Cross multiply
    19,997.47x = 29,977.51 × 8,898.13
  4. Step 4: Simplify right side
    19,997.47x = 266,743,736.57
  5. Step 5: Solve for x
    x = 266,743,736.57/19,997.47
  6. Step 6: Final answer
    x = 13,338.87

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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.