Home / 27,969.84-41,954.88-12,387.60

Finding the Fourth Proportional to 27,969.84, 41,954.88 and 12,387.60

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Solution

The fourth proportional to 27,969.84, 41,954.88 and 12,387.60 is: 18,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.84 : 41,954.88 = 12,387.60 : x
  2. Step 2: Convert to fraction form
    27,969.84/41,954.88 = 12,387.60/x
  3. Step 3: Cross multiply
    27,969.84x = 41,954.88 × 12,387.60
  4. Step 4: Simplify right side
    27,969.84x = 519,720,271.49
  5. Step 5: Solve for x
    x = 519,720,271.49/27,969.84
  6. Step 6: Final answer
    x = 18,581.45

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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.