Home / 20,010.51-30,014.68-10,149.53

Finding the Fourth Proportional to 20,010.51, 30,014.68 and 10,149.53

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Solution

The fourth proportional to 20,010.51, 30,014.68 and 10,149.53 is: 15,223.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.51 : 30,014.68 = 10,149.53 : x
  2. Step 2: Convert to fraction form
    20,010.51/30,014.68 = 10,149.53/x
  3. Step 3: Cross multiply
    20,010.51x = 30,014.68 × 10,149.53
  4. Step 4: Simplify right side
    20,010.51x = 304,634,869.73
  5. Step 5: Solve for x
    x = 304,634,869.73/20,010.51
  6. Step 6: Final answer
    x = 15,223.75

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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.