Home / 21,921.31-32,886.84-10,228.15

Finding the Fourth Proportional to 21,921.31, 32,886.84 and 10,228.15

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Solution

The fourth proportional to 21,921.31, 32,886.84 and 10,228.15 is: 15,344.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.31 : 32,886.84 = 10,228.15 : x
  2. Step 2: Convert to fraction form
    21,921.31/32,886.84 = 10,228.15/x
  3. Step 3: Cross multiply
    21,921.31x = 32,886.84 × 10,228.15
  4. Step 4: Simplify right side
    21,921.31x = 336,371,433.22
  5. Step 5: Solve for x
    x = 336,371,433.22/21,921.31
  6. Step 6: Final answer
    x = 15,344.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.