Home / 27,812.21-38,367.56-18,248.18

Finding the Fourth Proportional to 27,812.21, 38,367.56 and 18,248.18

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Solution

The fourth proportional to 27,812.21, 38,367.56 and 18,248.18 is: 25,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.21 : 38,367.56 = 18,248.18 : x
  2. Step 2: Convert to fraction form
    27,812.21/38,367.56 = 18,248.18/x
  3. Step 3: Cross multiply
    27,812.21x = 38,367.56 × 18,248.18
  4. Step 4: Simplify right side
    27,812.21x = 700,137,994.82
  5. Step 5: Solve for x
    x = 700,137,994.82/27,812.21
  6. Step 6: Final answer
    x = 25,173.77

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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.