Home / 20,086.65-27,710.64-14,122.22

Finding the Fourth Proportional to 20,086.65, 27,710.64 and 14,122.22

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Solution

The fourth proportional to 20,086.65, 27,710.64 and 14,122.22 is: 19,482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.65 : 27,710.64 = 14,122.22 : x
  2. Step 2: Convert to fraction form
    20,086.65/27,710.64 = 14,122.22/x
  3. Step 3: Cross multiply
    20,086.65x = 27,710.64 × 14,122.22
  4. Step 4: Simplify right side
    20,086.65x = 391,335,615.87
  5. Step 5: Solve for x
    x = 391,335,615.87/20,086.65
  6. Step 6: Final answer
    x = 19,482.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.