Home / 34,278.77-47,305.06-20,131.85

Finding the Fourth Proportional to 34,278.77, 47,305.06 and 20,131.85

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Solution

The fourth proportional to 34,278.77, 47,305.06 and 20,131.85 is: 27,782.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,278.77 : 47,305.06 = 20,131.85 : x
  2. Step 2: Convert to fraction form
    34,278.77/47,305.06 = 20,131.85/x
  3. Step 3: Cross multiply
    34,278.77x = 47,305.06 × 20,131.85
  4. Step 4: Simplify right side
    34,278.77x = 952,338,085.31
  5. Step 5: Solve for x
    x = 952,338,085.31/34,278.77
  6. Step 6: Final answer
    x = 27,782.16

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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.