Home / 19,799.40-29,655.90-15,382.20

Finding the Fourth Proportional to 19,799.40, 29,655.90 and 15,382.20

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Solution

The fourth proportional to 19,799.40, 29,655.90 and 15,382.20 is: 23,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.40 : 29,655.90 = 15,382.20 : x
  2. Step 2: Convert to fraction form
    19,799.40/29,655.90 = 15,382.20/x
  3. Step 3: Cross multiply
    19,799.40x = 29,655.90 × 15,382.20
  4. Step 4: Simplify right side
    19,799.40x = 456,172,984.98
  5. Step 5: Solve for x
    x = 456,172,984.98/19,799.40
  6. Step 6: Final answer
    x = 23,039.74

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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.