Home / 34,275.32-47,305.28-20,850.78

Finding the Fourth Proportional to 34,275.32, 47,305.28 and 20,850.78

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Solution

The fourth proportional to 34,275.32, 47,305.28 and 20,850.78 is: 28,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,275.32 : 47,305.28 = 20,850.78 : x
  2. Step 2: Convert to fraction form
    34,275.32/47,305.28 = 20,850.78/x
  3. Step 3: Cross multiply
    34,275.32x = 47,305.28 × 20,850.78
  4. Step 4: Simplify right side
    34,275.32x = 986,352,038.25
  5. Step 5: Solve for x
    x = 986,352,038.25/34,275.32
  6. Step 6: Final answer
    x = 28,777.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.