Home / 31,525.32-43,522.74-20,929.44

Finding the Fourth Proportional to 31,525.32, 43,522.74 and 20,929.44

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Solution

The fourth proportional to 31,525.32, 43,522.74 and 20,929.44 is: 28,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.32 : 43,522.74 = 20,929.44 : x
  2. Step 2: Convert to fraction form
    31,525.32/43,522.74 = 20,929.44/x
  3. Step 3: Cross multiply
    31,525.32x = 43,522.74 × 20,929.44
  4. Step 4: Simplify right side
    31,525.32x = 910,906,575.47
  5. Step 5: Solve for x
    x = 910,906,575.47/31,525.32
  6. Step 6: Final answer
    x = 28,894.44

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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.