Home / 25,665.12-38,480.40-13,169.52

Finding the Fourth Proportional to 25,665.12, 38,480.40 and 13,169.52

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Solution

The fourth proportional to 25,665.12, 38,480.40 and 13,169.52 is: 19,745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.12 : 38,480.40 = 13,169.52 : x
  2. Step 2: Convert to fraction form
    25,665.12/38,480.40 = 13,169.52/x
  3. Step 3: Cross multiply
    25,665.12x = 38,480.40 × 13,169.52
  4. Step 4: Simplify right side
    25,665.12x = 506,768,397.41
  5. Step 5: Solve for x
    x = 506,768,397.41/25,665.12
  6. Step 6: Final answer
    x = 19,745.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.