Home / 25,571.52-35,278.56-15,641.28

Finding the Fourth Proportional to 25,571.52, 35,278.56 and 15,641.28

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Solution

The fourth proportional to 25,571.52, 35,278.56 and 15,641.28 is: 21,578.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.52 : 35,278.56 = 15,641.28 : x
  2. Step 2: Convert to fraction form
    25,571.52/35,278.56 = 15,641.28/x
  3. Step 3: Cross multiply
    25,571.52x = 35,278.56 × 15,641.28
  4. Step 4: Simplify right side
    25,571.52x = 551,801,834.96
  5. Step 5: Solve for x
    x = 551,801,834.96/25,571.52
  6. Step 6: Final answer
    x = 21,578.77

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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.