Home / 14,094.20-21,141.30-13,287.80

Finding the Fourth Proportional to 14,094.20, 21,141.30 and 13,287.80

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Solution

The fourth proportional to 14,094.20, 21,141.30 and 13,287.80 is: 19,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,094.20 : 21,141.30 = 13,287.80 : x
  2. Step 2: Convert to fraction form
    14,094.20/21,141.30 = 13,287.80/x
  3. Step 3: Cross multiply
    14,094.20x = 21,141.30 × 13,287.80
  4. Step 4: Simplify right side
    14,094.20x = 280,921,366.14
  5. Step 5: Solve for x
    x = 280,921,366.14/14,094.20
  6. Step 6: Final answer
    x = 19,931.70

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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.