Home / 25,639.57-35,393.40-15,571.26

Finding the Fourth Proportional to 25,639.57, 35,393.40 and 15,571.26

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Solution

The fourth proportional to 25,639.57, 35,393.40 and 15,571.26 is: 21,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.57 : 35,393.40 = 15,571.26 : x
  2. Step 2: Convert to fraction form
    25,639.57/35,393.40 = 15,571.26/x
  3. Step 3: Cross multiply
    25,639.57x = 35,393.40 × 15,571.26
  4. Step 4: Simplify right side
    25,639.57x = 551,119,833.68
  5. Step 5: Solve for x
    x = 551,119,833.68/25,639.57
  6. Step 6: Final answer
    x = 21,494.89

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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.