Home / 20,299.16-28,012.76-11,346.68

Finding the Fourth Proportional to 20,299.16, 28,012.76 and 11,346.68

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Solution

The fourth proportional to 20,299.16, 28,012.76 and 11,346.68 is: 15,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.16 : 28,012.76 = 11,346.68 : x
  2. Step 2: Convert to fraction form
    20,299.16/28,012.76 = 11,346.68/x
  3. Step 3: Cross multiply
    20,299.16x = 28,012.76 × 11,346.68
  4. Step 4: Simplify right side
    20,299.16x = 317,851,823.64
  5. Step 5: Solve for x
    x = 317,851,823.64/20,299.16
  6. Step 6: Final answer
    x = 15,658.37

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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.