Home / 27,920.25-41,880.51-12,141.18

Finding the Fourth Proportional to 27,920.25, 41,880.51 and 12,141.18

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Solution

The fourth proportional to 27,920.25, 41,880.51 and 12,141.18 is: 18,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.25 : 41,880.51 = 12,141.18 : x
  2. Step 2: Convert to fraction form
    27,920.25/41,880.51 = 12,141.18/x
  3. Step 3: Cross multiply
    27,920.25x = 41,880.51 × 12,141.18
  4. Step 4: Simplify right side
    27,920.25x = 508,478,810.40
  5. Step 5: Solve for x
    x = 508,478,810.40/27,920.25
  6. Step 6: Final answer
    x = 18,211.83

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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.