Home / 39,405.48-54,379.54-25,258.31

Finding the Fourth Proportional to 39,405.48, 54,379.54 and 25,258.31

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Solution

The fourth proportional to 39,405.48, 54,379.54 and 25,258.31 is: 34,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.48 : 54,379.54 = 25,258.31 : x
  2. Step 2: Convert to fraction form
    39,405.48/54,379.54 = 25,258.31/x
  3. Step 3: Cross multiply
    39,405.48x = 54,379.54 × 25,258.31
  4. Step 4: Simplify right side
    39,405.48x = 1,373,535,278.98
  5. Step 5: Solve for x
    x = 1,373,535,278.98/39,405.48
  6. Step 6: Final answer
    x = 34,856.45

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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.