Home / 31,879.17-44,002.53-21,268.80

Finding the Fourth Proportional to 31,879.17, 44,002.53 and 21,268.80

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Solution

The fourth proportional to 31,879.17, 44,002.53 and 21,268.80 is: 29,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.17 : 44,002.53 = 21,268.80 : x
  2. Step 2: Convert to fraction form
    31,879.17/44,002.53 = 21,268.80/x
  3. Step 3: Cross multiply
    31,879.17x = 44,002.53 × 21,268.80
  4. Step 4: Simplify right side
    31,879.17x = 935,881,010.06
  5. Step 5: Solve for x
    x = 935,881,010.06/31,879.17
  6. Step 6: Final answer
    x = 29,357.13

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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.