Home / 31,955.12-44,089.88-20,309.07

Finding the Fourth Proportional to 31,955.12, 44,089.88 and 20,309.07

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Solution

The fourth proportional to 31,955.12, 44,089.88 and 20,309.07 is: 28,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,955.12 : 44,089.88 = 20,309.07 : x
  2. Step 2: Convert to fraction form
    31,955.12/44,089.88 = 20,309.07/x
  3. Step 3: Cross multiply
    31,955.12x = 44,089.88 × 20,309.07
  4. Step 4: Simplify right side
    31,955.12x = 895,424,357.67
  5. Step 5: Solve for x
    x = 895,424,357.67/31,955.12
  6. Step 6: Final answer
    x = 28,021.32

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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.