Home / 31,788.81-43,870.55-18,362.52

Finding the Fourth Proportional to 31,788.81, 43,870.55 and 18,362.52

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Solution

The fourth proportional to 31,788.81, 43,870.55 and 18,362.52 is: 25,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.81 : 43,870.55 = 18,362.52 : x
  2. Step 2: Convert to fraction form
    31,788.81/43,870.55 = 18,362.52/x
  3. Step 3: Cross multiply
    31,788.81x = 43,870.55 × 18,362.52
  4. Step 4: Simplify right side
    31,788.81x = 805,573,759.97
  5. Step 5: Solve for x
    x = 805,573,759.97/31,788.81
  6. Step 6: Final answer
    x = 25,341.43

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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.