Home / 20,011.51-30,016.18-10,150.53

Finding the Fourth Proportional to 20,011.51, 30,016.18 and 10,150.53

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Solution

The fourth proportional to 20,011.51, 30,016.18 and 10,150.53 is: 15,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.51 : 30,016.18 = 10,150.53 : x
  2. Step 2: Convert to fraction form
    20,011.51/30,016.18 = 10,150.53/x
  3. Step 3: Cross multiply
    20,011.51x = 30,016.18 × 10,150.53
  4. Step 4: Simplify right side
    20,011.51x = 304,680,135.58
  5. Step 5: Solve for x
    x = 304,680,135.58/20,011.51
  6. Step 6: Final answer
    x = 15,225.24

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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.