Home / 20,483.16-28,266.42-11,530.62

Finding the Fourth Proportional to 20,483.16, 28,266.42 and 11,530.62

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Solution

The fourth proportional to 20,483.16, 28,266.42 and 11,530.62 is: 15,912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.16 : 28,266.42 = 11,530.62 : x
  2. Step 2: Convert to fraction form
    20,483.16/28,266.42 = 11,530.62/x
  3. Step 3: Cross multiply
    20,483.16x = 28,266.42 × 11,530.62
  4. Step 4: Simplify right side
    20,483.16x = 325,929,347.78
  5. Step 5: Solve for x
    x = 325,929,347.78/20,483.16
  6. Step 6: Final answer
    x = 15,912.06

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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.