Home / 20,889.52-31,302.02-14,108.53

Finding the Fourth Proportional to 20,889.52, 31,302.02 and 14,108.53

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Solution

The fourth proportional to 20,889.52, 31,302.02 and 14,108.53 is: 21,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,889.52 : 31,302.02 = 14,108.53 : x
  2. Step 2: Convert to fraction form
    20,889.52/31,302.02 = 14,108.53/x
  3. Step 3: Cross multiply
    20,889.52x = 31,302.02 × 14,108.53
  4. Step 4: Simplify right side
    20,889.52x = 441,625,488.23
  5. Step 5: Solve for x
    x = 441,625,488.23/20,889.52
  6. Step 6: Final answer
    x = 21,141.01

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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.