Home / 18,943.10-28,422.84-10,167.76

Finding the Fourth Proportional to 18,943.10, 28,422.84 and 10,167.76

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Solution

The fourth proportional to 18,943.10, 28,422.84 and 10,167.76 is: 15,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.10 : 28,422.84 = 10,167.76 : x
  2. Step 2: Convert to fraction form
    18,943.10/28,422.84 = 10,167.76/x
  3. Step 3: Cross multiply
    18,943.10x = 28,422.84 × 10,167.76
  4. Step 4: Simplify right side
    18,943.10x = 288,996,422.69
  5. Step 5: Solve for x
    x = 288,996,422.69/18,943.10
  6. Step 6: Final answer
    x = 15,256.03

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1.5x scale

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.