Home / 18,964.35-28,449.22-10,077.36

Finding the Fourth Proportional to 18,964.35, 28,449.22 and 10,077.36

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Solution

The fourth proportional to 18,964.35, 28,449.22 and 10,077.36 is: 15,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.35 : 28,449.22 = 10,077.36 : x
  2. Step 2: Convert to fraction form
    18,964.35/28,449.22 = 10,077.36/x
  3. Step 3: Cross multiply
    18,964.35x = 28,449.22 × 10,077.36
  4. Step 4: Simplify right side
    18,964.35x = 286,693,031.66
  5. Step 5: Solve for x
    x = 286,693,031.66/18,964.35
  6. Step 6: Final answer
    x = 15,117.47

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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.