Home / 31,278.10-46,920.22-9,091.66

Finding the Fourth Proportional to 31,278.10, 46,920.22 and 9,091.66

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Solution

The fourth proportional to 31,278.10, 46,920.22 and 9,091.66 is: 13,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.10 : 46,920.22 = 9,091.66 : x
  2. Step 2: Convert to fraction form
    31,278.10/46,920.22 = 9,091.66/x
  3. Step 3: Cross multiply
    31,278.10x = 46,920.22 × 9,091.66
  4. Step 4: Simplify right side
    31,278.10x = 426,582,687.37
  5. Step 5: Solve for x
    x = 426,582,687.37/31,278.10
  6. Step 6: Final answer
    x = 13,638.38

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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.