Home / 27,792.33-38,353.05-15,855.90

Finding the Fourth Proportional to 27,792.33, 38,353.05 and 15,855.90

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Solution

The fourth proportional to 27,792.33, 38,353.05 and 15,855.90 is: 21,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,792.33 : 38,353.05 = 15,855.90 : x
  2. Step 2: Convert to fraction form
    27,792.33/38,353.05 = 15,855.90/x
  3. Step 3: Cross multiply
    27,792.33x = 38,353.05 × 15,855.90
  4. Step 4: Simplify right side
    27,792.33x = 608,122,125.50
  5. Step 5: Solve for x
    x = 608,122,125.50/27,792.33
  6. Step 6: Final answer
    x = 21,880.93

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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.