Home / 27,984.09-38,618.07-15,408.75

Finding the Fourth Proportional to 27,984.09, 38,618.07 and 15,408.75

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Solution

The fourth proportional to 27,984.09, 38,618.07 and 15,408.75 is: 21,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.09 : 38,618.07 = 15,408.75 : x
  2. Step 2: Convert to fraction form
    27,984.09/38,618.07 = 15,408.75/x
  3. Step 3: Cross multiply
    27,984.09x = 38,618.07 × 15,408.75
  4. Step 4: Simplify right side
    27,984.09x = 595,056,186.11
  5. Step 5: Solve for x
    x = 595,056,186.11/27,984.09
  6. Step 6: Final answer
    x = 21,264.09

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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.