Home / 25,268.90-34,871.05-13,939.12

Finding the Fourth Proportional to 25,268.90, 34,871.05 and 13,939.12

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Solution

The fourth proportional to 25,268.90, 34,871.05 and 13,939.12 is: 19,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,268.90 : 34,871.05 = 13,939.12 : x
  2. Step 2: Convert to fraction form
    25,268.90/34,871.05 = 13,939.12/x
  3. Step 3: Cross multiply
    25,268.90x = 34,871.05 × 13,939.12
  4. Step 4: Simplify right side
    25,268.90x = 486,071,750.48
  5. Step 5: Solve for x
    x = 486,071,750.48/25,268.90
  6. Step 6: Final answer
    x = 19,235.97

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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.