Home / 27,639.54-38,142.57-15,064.29

Finding the Fourth Proportional to 27,639.54, 38,142.57 and 15,064.29

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Solution

The fourth proportional to 27,639.54, 38,142.57 and 15,064.29 is: 20,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.54 : 38,142.57 = 15,064.29 : x
  2. Step 2: Convert to fraction form
    27,639.54/38,142.57 = 15,064.29/x
  3. Step 3: Cross multiply
    27,639.54x = 38,142.57 × 15,064.29
  4. Step 4: Simplify right side
    27,639.54x = 574,590,735.83
  5. Step 5: Solve for x
    x = 574,590,735.83/27,639.54
  6. Step 6: Final answer
    x = 20,788.72

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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.