Home / 31,641.22-43,657.63-18,891.92

Finding the Fourth Proportional to 31,641.22, 43,657.63 and 18,891.92

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Solution

The fourth proportional to 31,641.22, 43,657.63 and 18,891.92 is: 26,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,641.22 : 43,657.63 = 18,891.92 : x
  2. Step 2: Convert to fraction form
    31,641.22/43,657.63 = 18,891.92/x
  3. Step 3: Cross multiply
    31,641.22x = 43,657.63 × 18,891.92
  4. Step 4: Simplify right side
    31,641.22x = 824,776,453.35
  5. Step 5: Solve for x
    x = 824,776,453.35/31,641.22
  6. Step 6: Final answer
    x = 26,066.52

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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.