Home / 20,483.41-28,266.68-11,530.71

Finding the Fourth Proportional to 20,483.41, 28,266.68 and 11,530.71

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Solution

The fourth proportional to 20,483.41, 28,266.68 and 11,530.71 is: 15,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.41 : 28,266.68 = 11,530.71 : x
  2. Step 2: Convert to fraction form
    20,483.41/28,266.68 = 11,530.71/x
  3. Step 3: Cross multiply
    20,483.41x = 28,266.68 × 11,530.71
  4. Step 4: Simplify right side
    20,483.41x = 325,934,889.74
  5. Step 5: Solve for x
    x = 325,934,889.74/20,483.41
  6. Step 6: Final answer
    x = 15,912.14

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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.