Home / 28,152.70-42,161.76-15,641.69

Finding the Fourth Proportional to 28,152.70, 42,161.76 and 15,641.69

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Solution

The fourth proportional to 28,152.70, 42,161.76 and 15,641.69 is: 23,425.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.70 : 42,161.76 = 15,641.69 : x
  2. Step 2: Convert to fraction form
    28,152.70/42,161.76 = 15,641.69/x
  3. Step 3: Cross multiply
    28,152.70x = 42,161.76 × 15,641.69
  4. Step 4: Simplify right side
    28,152.70x = 659,481,179.77
  5. Step 5: Solve for x
    x = 659,481,179.77/28,152.70
  6. Step 6: Final answer
    x = 23,425.15

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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.