Home / 31,690.53-43,730.93-18,597.33

Finding the Fourth Proportional to 31,690.53, 43,730.93 and 18,597.33

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Solution

The fourth proportional to 31,690.53, 43,730.93 and 18,597.33 is: 25,663.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,690.53 : 43,730.93 = 18,597.33 : x
  2. Step 2: Convert to fraction form
    31,690.53/43,730.93 = 18,597.33/x
  3. Step 3: Cross multiply
    31,690.53x = 43,730.93 × 18,597.33
  4. Step 4: Simplify right side
    31,690.53x = 813,278,364.26
  5. Step 5: Solve for x
    x = 813,278,364.26/31,690.53
  6. Step 6: Final answer
    x = 25,663.14

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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.