Home / 20,012.51-30,017.68-10,151.53

Finding the Fourth Proportional to 20,012.51, 30,017.68 and 10,151.53

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Solution

The fourth proportional to 20,012.51, 30,017.68 and 10,151.53 is: 15,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.51 : 30,017.68 = 10,151.53 : x
  2. Step 2: Convert to fraction form
    20,012.51/30,017.68 = 10,151.53/x
  3. Step 3: Cross multiply
    20,012.51x = 30,017.68 × 10,151.53
  4. Step 4: Simplify right side
    20,012.51x = 304,725,379.05
  5. Step 5: Solve for x
    x = 304,725,379.05/20,012.51
  6. Step 6: Final answer
    x = 15,226.74

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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.