Home / 27,661.43-38,172.60-15,724.77

Finding the Fourth Proportional to 27,661.43, 38,172.60 and 15,724.77

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Solution

The fourth proportional to 27,661.43, 38,172.60 and 15,724.77 is: 21,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.43 : 38,172.60 = 15,724.77 : x
  2. Step 2: Convert to fraction form
    27,661.43/38,172.60 = 15,724.77/x
  3. Step 3: Cross multiply
    27,661.43x = 38,172.60 × 15,724.77
  4. Step 4: Simplify right side
    27,661.43x = 600,255,355.30
  5. Step 5: Solve for x
    x = 600,255,355.30/27,661.43
  6. Step 6: Final answer
    x = 21,700.08

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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.