Home / 20,089.20-27,718.29-14,422.98

Finding the Fourth Proportional to 20,089.20, 27,718.29 and 14,422.98

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Solution

The fourth proportional to 20,089.20, 27,718.29 and 14,422.98 is: 19,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.20 : 27,718.29 = 14,422.98 : x
  2. Step 2: Convert to fraction form
    20,089.20/27,718.29 = 14,422.98/x
  3. Step 3: Cross multiply
    20,089.20x = 27,718.29 × 14,422.98
  4. Step 4: Simplify right side
    20,089.20x = 399,780,342.30
  5. Step 5: Solve for x
    x = 399,780,342.30/20,089.20
  6. Step 6: Final answer
    x = 19,900.26

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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.