Home / 20,013.52-30,019.18-10,152.54

Finding the Fourth Proportional to 20,013.52, 30,019.18 and 10,152.54

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Solution

The fourth proportional to 20,013.52, 30,019.18 and 10,152.54 is: 15,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.52 : 30,019.18 = 10,152.54 : x
  2. Step 2: Convert to fraction form
    20,013.52/30,019.18 = 10,152.54/x
  3. Step 3: Cross multiply
    20,013.52x = 30,019.18 × 10,152.54
  4. Step 4: Simplify right side
    20,013.52x = 304,770,925.72
  5. Step 5: Solve for x
    x = 304,770,925.72/20,013.52
  6. Step 6: Final answer
    x = 15,228.25

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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.