Home / 28,141.68-38,836.18-15,396.06

Finding the Fourth Proportional to 28,141.68, 38,836.18 and 15,396.06

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Solution

The fourth proportional to 28,141.68, 38,836.18 and 15,396.06 is: 21,246.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.68 : 38,836.18 = 15,396.06 : x
  2. Step 2: Convert to fraction form
    28,141.68/38,836.18 = 15,396.06/x
  3. Step 3: Cross multiply
    28,141.68x = 38,836.18 × 15,396.06
  4. Step 4: Simplify right side
    28,141.68x = 597,924,157.45
  5. Step 5: Solve for x
    x = 597,924,157.45/28,141.68
  6. Step 6: Final answer
    x = 21,246.92

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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.