Home / 20,074.59-30,130.56-10,221.24

Finding the Fourth Proportional to 20,074.59, 30,130.56 and 10,221.24

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Solution

The fourth proportional to 20,074.59, 30,130.56 and 10,221.24 is: 15,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.59 : 30,130.56 = 10,221.24 : x
  2. Step 2: Convert to fraction form
    20,074.59/30,130.56 = 10,221.24/x
  3. Step 3: Cross multiply
    20,074.59x = 30,130.56 × 10,221.24
  4. Step 4: Simplify right side
    20,074.59x = 307,971,685.09
  5. Step 5: Solve for x
    x = 307,971,685.09/20,074.59
  6. Step 6: Final answer
    x = 15,341.37

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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.