Home / 40,389.80-55,739.75-23,394.78

Finding the Fourth Proportional to 40,389.80, 55,739.75 and 23,394.78

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Solution

The fourth proportional to 40,389.80, 55,739.75 and 23,394.78 is: 32,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,389.80 : 55,739.75 = 23,394.78 : x
  2. Step 2: Convert to fraction form
    40,389.80/55,739.75 = 23,394.78/x
  3. Step 3: Cross multiply
    40,389.80x = 55,739.75 × 23,394.78
  4. Step 4: Simplify right side
    40,389.80x = 1,304,019,071.53
  5. Step 5: Solve for x
    x = 1,304,019,071.53/40,389.80
  6. Step 6: Final answer
    x = 32,285.86

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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.