Home / 20,599.68-28,427.50-11,168.24

Finding the Fourth Proportional to 20,599.68, 28,427.50 and 11,168.24

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Solution

The fourth proportional to 20,599.68, 28,427.50 and 11,168.24 is: 15,412.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.68 : 28,427.50 = 11,168.24 : x
  2. Step 2: Convert to fraction form
    20,599.68/28,427.50 = 11,168.24/x
  3. Step 3: Cross multiply
    20,599.68x = 28,427.50 × 11,168.24
  4. Step 4: Simplify right side
    20,599.68x = 317,485,142.60
  5. Step 5: Solve for x
    x = 317,485,142.60/20,599.68
  6. Step 6: Final answer
    x = 15,412.14

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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.