Home / 31,648.06-43,634.63-20,297.53

Finding the Fourth Proportional to 31,648.06, 43,634.63 and 20,297.53

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Solution

The fourth proportional to 31,648.06, 43,634.63 and 20,297.53 is: 27,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.06 : 43,634.63 = 20,297.53 : x
  2. Step 2: Convert to fraction form
    31,648.06/43,634.63 = 20,297.53/x
  3. Step 3: Cross multiply
    31,648.06x = 43,634.63 × 20,297.53
  4. Step 4: Simplify right side
    31,648.06x = 885,675,211.46
  5. Step 5: Solve for x
    x = 885,675,211.46/31,648.06
  6. Step 6: Final answer
    x = 27,985.13

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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.