Home / 31,788.83-43,870.38-19,217.63

Finding the Fourth Proportional to 31,788.83, 43,870.38 and 19,217.63

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Solution

The fourth proportional to 31,788.83, 43,870.38 and 19,217.63 is: 26,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.83 : 43,870.38 = 19,217.63 : x
  2. Step 2: Convert to fraction form
    31,788.83/43,870.38 = 19,217.63/x
  3. Step 3: Cross multiply
    31,788.83x = 43,870.38 × 19,217.63
  4. Step 4: Simplify right side
    31,788.83x = 843,084,730.80
  5. Step 5: Solve for x
    x = 843,084,730.80/31,788.83
  6. Step 6: Final answer
    x = 26,521.41

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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.