Home / 25,838.16-35,667.48-21,879.76

Finding the Fourth Proportional to 25,838.16, 35,667.48 and 21,879.76

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Solution

The fourth proportional to 25,838.16, 35,667.48 and 21,879.76 is: 30,203.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,838.16 : 35,667.48 = 21,879.76 : x
  2. Step 2: Convert to fraction form
    25,838.16/35,667.48 = 21,879.76/x
  3. Step 3: Cross multiply
    25,838.16x = 35,667.48 × 21,879.76
  4. Step 4: Simplify right side
    25,838.16x = 780,395,902.20
  5. Step 5: Solve for x
    x = 780,395,902.20/25,838.16
  6. Step 6: Final answer
    x = 30,203.23

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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.