Home / 31,309.74-43,211.86-19,376.92

Finding the Fourth Proportional to 31,309.74, 43,211.86 and 19,376.92

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Solution

The fourth proportional to 31,309.74, 43,211.86 and 19,376.92 is: 26,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.74 : 43,211.86 = 19,376.92 : x
  2. Step 2: Convert to fraction form
    31,309.74/43,211.86 = 19,376.92/x
  3. Step 3: Cross multiply
    31,309.74x = 43,211.86 × 19,376.92
  4. Step 4: Simplify right side
    31,309.74x = 837,312,754.27
  5. Step 5: Solve for x
    x = 837,312,754.27/31,309.74
  6. Step 6: Final answer
    x = 26,742.88

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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.