Home / 28,444.10-42,671.64-10,912.56

Finding the Fourth Proportional to 28,444.10, 42,671.64 and 10,912.56

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Solution

The fourth proportional to 28,444.10, 42,671.64 and 10,912.56 is: 16,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.10 : 42,671.64 = 10,912.56 : x
  2. Step 2: Convert to fraction form
    28,444.10/42,671.64 = 10,912.56/x
  3. Step 3: Cross multiply
    28,444.10x = 42,671.64 × 10,912.56
  4. Step 4: Simplify right side
    28,444.10x = 465,656,831.80
  5. Step 5: Solve for x
    x = 465,656,831.80/28,444.10
  6. Step 6: Final answer
    x = 16,370.95

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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.