Home / 20,358.24-30,515.44-13,316.08

Finding the Fourth Proportional to 20,358.24, 30,515.44 and 13,316.08

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Solution

The fourth proportional to 20,358.24, 30,515.44 and 13,316.08 is: 19,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.24 : 30,515.44 = 13,316.08 : x
  2. Step 2: Convert to fraction form
    20,358.24/30,515.44 = 13,316.08/x
  3. Step 3: Cross multiply
    20,358.24x = 30,515.44 × 13,316.08
  4. Step 4: Simplify right side
    20,358.24x = 406,346,040.28
  5. Step 5: Solve for x
    x = 406,346,040.28/20,358.24
  6. Step 6: Final answer
    x = 19,959.78

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1.5x scale

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.