Home / 21,807.31-32,725.30-11,953.56

Finding the Fourth Proportional to 21,807.31, 32,725.30 and 11,953.56

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Solution

The fourth proportional to 21,807.31, 32,725.30 and 11,953.56 is: 17,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.31 : 32,725.30 = 11,953.56 : x
  2. Step 2: Convert to fraction form
    21,807.31/32,725.30 = 11,953.56/x
  3. Step 3: Cross multiply
    21,807.31x = 32,725.30 × 11,953.56
  4. Step 4: Simplify right side
    21,807.31x = 391,183,837.07
  5. Step 5: Solve for x
    x = 391,183,837.07/21,807.31
  6. Step 6: Final answer
    x = 17,938.20

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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.