Home / 27,971.28-38,599.62-15,396.06

Finding the Fourth Proportional to 27,971.28, 38,599.62 and 15,396.06

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Solution

The fourth proportional to 27,971.28, 38,599.62 and 15,396.06 is: 21,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.28 : 38,599.62 = 15,396.06 : x
  2. Step 2: Convert to fraction form
    27,971.28/38,599.62 = 15,396.06/x
  3. Step 3: Cross multiply
    27,971.28x = 38,599.62 × 15,396.06
  4. Step 4: Simplify right side
    27,971.28x = 594,282,065.50
  5. Step 5: Solve for x
    x = 594,282,065.50/27,971.28
  6. Step 6: Final answer
    x = 21,246.15

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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.