Home / 25,644.32-35,401.68-20,322.08

Finding the Fourth Proportional to 25,644.32, 35,401.68 and 20,322.08

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Solution

The fourth proportional to 25,644.32, 35,401.68 and 20,322.08 is: 28,054.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.32 : 35,401.68 = 20,322.08 : x
  2. Step 2: Convert to fraction form
    25,644.32/35,401.68 = 20,322.08/x
  3. Step 3: Cross multiply
    25,644.32x = 35,401.68 × 20,322.08
  4. Step 4: Simplify right side
    25,644.32x = 719,435,773.09
  5. Step 5: Solve for x
    x = 719,435,773.09/25,644.32
  6. Step 6: Final answer
    x = 28,054.39

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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.