Home / 27,744.18-38,284.32-15,807.21

Finding the Fourth Proportional to 27,744.18, 38,284.32 and 15,807.21

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Solution

The fourth proportional to 27,744.18, 38,284.32 and 15,807.21 is: 21,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,744.18 : 38,284.32 = 15,807.21 : x
  2. Step 2: Convert to fraction form
    27,744.18/38,284.32 = 15,807.21/x
  3. Step 3: Cross multiply
    27,744.18x = 38,284.32 × 15,807.21
  4. Step 4: Simplify right side
    27,744.18x = 605,168,285.95
  5. Step 5: Solve for x
    x = 605,168,285.95/27,744.18
  6. Step 6: Final answer
    x = 21,812.44

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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.