Home / 19,309.44-28,931.76-13,451.52

Finding the Fourth Proportional to 19,309.44, 28,931.76 and 13,451.52

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Solution

The fourth proportional to 19,309.44, 28,931.76 and 13,451.52 is: 20,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.44 : 28,931.76 = 13,451.52 : x
  2. Step 2: Convert to fraction form
    19,309.44/28,931.76 = 13,451.52/x
  3. Step 3: Cross multiply
    19,309.44x = 28,931.76 × 13,451.52
  4. Step 4: Simplify right side
    19,309.44x = 389,176,148.28
  5. Step 5: Solve for x
    x = 389,176,148.28/19,309.44
  6. Step 6: Final answer
    x = 20,154.71

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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.