Home / 31,306.60-43,177.80-19,361.56

Finding the Fourth Proportional to 31,306.60, 43,177.80 and 19,361.56

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Solution

The fourth proportional to 31,306.60, 43,177.80 and 19,361.56 is: 26,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,306.60 : 43,177.80 = 19,361.56 : x
  2. Step 2: Convert to fraction form
    31,306.60/43,177.80 = 19,361.56/x
  3. Step 3: Cross multiply
    31,306.60x = 43,177.80 × 19,361.56
  4. Step 4: Simplify right side
    31,306.60x = 835,989,565.37
  5. Step 5: Solve for x
    x = 835,989,565.37/31,306.60
  6. Step 6: Final answer
    x = 26,703.30

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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.