Home / 20,316.62-30,474.93-13,340.70

Finding the Fourth Proportional to 20,316.62, 30,474.93 and 13,340.70

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Solution

The fourth proportional to 20,316.62, 30,474.93 and 13,340.70 is: 20,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.62 : 30,474.93 = 13,340.70 : x
  2. Step 2: Convert to fraction form
    20,316.62/30,474.93 = 13,340.70/x
  3. Step 3: Cross multiply
    20,316.62x = 30,474.93 × 13,340.70
  4. Step 4: Simplify right side
    20,316.62x = 406,556,948.68
  5. Step 5: Solve for x
    x = 406,556,948.68/20,316.62
  6. Step 6: Final answer
    x = 20,011.05

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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.