Home / 21,775.60-30,052.56-12,825.92

Finding the Fourth Proportional to 21,775.60, 30,052.56 and 12,825.92

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Solution

The fourth proportional to 21,775.60, 30,052.56 and 12,825.92 is: 17,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.60 : 30,052.56 = 12,825.92 : x
  2. Step 2: Convert to fraction form
    21,775.60/30,052.56 = 12,825.92/x
  3. Step 3: Cross multiply
    21,775.60x = 30,052.56 × 12,825.92
  4. Step 4: Simplify right side
    21,775.60x = 385,451,730.36
  5. Step 5: Solve for x
    x = 385,451,730.36/21,775.60
  6. Step 6: Final answer
    x = 17,701.08

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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.