Home / 16,172.76-22,321.26-15,434.04

Finding the Fourth Proportional to 16,172.76, 22,321.26 and 15,434.04

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Solution

The fourth proportional to 16,172.76, 22,321.26 and 15,434.04 is: 21,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,172.76 : 22,321.26 = 15,434.04 : x
  2. Step 2: Convert to fraction form
    16,172.76/22,321.26 = 15,434.04/x
  3. Step 3: Cross multiply
    16,172.76x = 22,321.26 × 15,434.04
  4. Step 4: Simplify right side
    16,172.76x = 344,507,219.69
  5. Step 5: Solve for x
    x = 344,507,219.69/16,172.76
  6. Step 6: Final answer
    x = 21,301.70

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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.