Home / 21,838.60-32,719.02-10,131.40

Finding the Fourth Proportional to 21,838.60, 32,719.02 and 10,131.40

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Solution

The fourth proportional to 21,838.60, 32,719.02 and 10,131.40 is: 15,179.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.60 : 32,719.02 = 10,131.40 : x
  2. Step 2: Convert to fraction form
    21,838.60/32,719.02 = 10,131.40/x
  3. Step 3: Cross multiply
    21,838.60x = 32,719.02 × 10,131.40
  4. Step 4: Simplify right side
    21,838.60x = 331,489,479.23
  5. Step 5: Solve for x
    x = 331,489,479.23/21,838.60
  6. Step 6: Final answer
    x = 15,179.06

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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.