Home / 14,351.82-21,386.87-13,882.02

Finding the Fourth Proportional to 14,351.82, 21,386.87 and 13,882.02

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Solution

The fourth proportional to 14,351.82, 21,386.87 and 13,882.02 is: 20,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.82 : 21,386.87 = 13,882.02 : x
  2. Step 2: Convert to fraction form
    14,351.82/21,386.87 = 13,882.02/x
  3. Step 3: Cross multiply
    14,351.82x = 21,386.87 × 13,882.02
  4. Step 4: Simplify right side
    14,351.82x = 296,892,887.67
  5. Step 5: Solve for x
    x = 296,892,887.67/14,351.82
  6. Step 6: Final answer
    x = 20,686.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.