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Finding the Fourth Proportional to 27,214.88, 40,834.88 and 12,428.33

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Solution

The fourth proportional to 27,214.88, 40,834.88 and 12,428.33 is: 18,648.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,214.88 : 40,834.88 = 12,428.33 : x
  2. Step 2: Convert to fraction form
    27,214.88/40,834.88 = 12,428.33/x
  3. Step 3: Cross multiply
    27,214.88x = 40,834.88 × 12,428.33
  4. Step 4: Simplify right side
    27,214.88x = 507,509,302.01
  5. Step 5: Solve for x
    x = 507,509,302.01/27,214.88
  6. Step 6: Final answer
    x = 18,648.23

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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.