Home / 18,339.84-27,455.57-13,680.28

Finding the Fourth Proportional to 18,339.84, 27,455.57 and 13,680.28

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Solution

The fourth proportional to 18,339.84, 27,455.57 and 13,680.28 is: 20,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.84 : 27,455.57 = 13,680.28 : x
  2. Step 2: Convert to fraction form
    18,339.84/27,455.57 = 13,680.28/x
  3. Step 3: Cross multiply
    18,339.84x = 27,455.57 × 13,680.28
  4. Step 4: Simplify right side
    18,339.84x = 375,599,885.16
  5. Step 5: Solve for x
    x = 375,599,885.16/18,339.84
  6. Step 6: Final answer
    x = 20,480.00

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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.