Home / 20,275.94-30,424.82-8,437.88

Finding the Fourth Proportional to 20,275.94, 30,424.82 and 8,437.88

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Solution

The fourth proportional to 20,275.94, 30,424.82 and 8,437.88 is: 12,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.94 : 30,424.82 = 8,437.88 : x
  2. Step 2: Convert to fraction form
    20,275.94/30,424.82 = 8,437.88/x
  3. Step 3: Cross multiply
    20,275.94x = 30,424.82 × 8,437.88
  4. Step 4: Simplify right side
    20,275.94x = 256,720,785.87
  5. Step 5: Solve for x
    x = 256,720,785.87/20,275.94
  6. Step 6: Final answer
    x = 12,661.35

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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.