Home / 31,711.12-43,759.74-17,370.76

Finding the Fourth Proportional to 31,711.12, 43,759.74 and 17,370.76

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Solution

The fourth proportional to 31,711.12, 43,759.74 and 17,370.76 is: 23,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.12 : 43,759.74 = 17,370.76 : x
  2. Step 2: Convert to fraction form
    31,711.12/43,759.74 = 17,370.76/x
  3. Step 3: Cross multiply
    31,711.12x = 43,759.74 × 17,370.76
  4. Step 4: Simplify right side
    31,711.12x = 760,139,941.20
  5. Step 5: Solve for x
    x = 760,139,941.20/31,711.12
  6. Step 6: Final answer
    x = 23,970.77

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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.