Home / 39,430.15-54,399.63-25,290.79

Finding the Fourth Proportional to 39,430.15, 54,399.63 and 25,290.79

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Solution

The fourth proportional to 39,430.15, 54,399.63 and 25,290.79 is: 34,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.15 : 54,399.63 = 25,290.79 : x
  2. Step 2: Convert to fraction form
    39,430.15/54,399.63 = 25,290.79/x
  3. Step 3: Cross multiply
    39,430.15x = 54,399.63 × 25,290.79
  4. Step 4: Simplify right side
    39,430.15x = 1,375,809,618.41
  5. Step 5: Solve for x
    x = 1,375,809,618.41/39,430.15
  6. Step 6: Final answer
    x = 34,892.33

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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.