Home / 27,636.75-38,138.99-15,061.77

Finding the Fourth Proportional to 27,636.75, 38,138.99 and 15,061.77

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Solution

The fourth proportional to 27,636.75, 38,138.99 and 15,061.77 is: 20,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.75 : 38,138.99 = 15,061.77 : x
  2. Step 2: Convert to fraction form
    27,636.75/38,138.99 = 15,061.77/x
  3. Step 3: Cross multiply
    27,636.75x = 38,138.99 × 15,061.77
  4. Step 4: Simplify right side
    27,636.75x = 574,440,695.41
  5. Step 5: Solve for x
    x = 574,440,695.41/27,636.75
  6. Step 6: Final answer
    x = 20,785.39

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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.