Home / 28,339.92-42,515.54-15,877.64

Finding the Fourth Proportional to 28,339.92, 42,515.54 and 15,877.64

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Solution

The fourth proportional to 28,339.92, 42,515.54 and 15,877.64 is: 23,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.92 : 42,515.54 = 15,877.64 : x
  2. Step 2: Convert to fraction form
    28,339.92/42,515.54 = 15,877.64/x
  3. Step 3: Cross multiply
    28,339.92x = 42,515.54 × 15,877.64
  4. Step 4: Simplify right side
    28,339.92x = 675,046,438.53
  5. Step 5: Solve for x
    x = 675,046,438.53/28,339.92
  6. Step 6: Final answer
    x = 23,819.63

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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.