Home / 27,663.86-38,175.94-15,727.20

Finding the Fourth Proportional to 27,663.86, 38,175.94 and 15,727.20

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Solution

The fourth proportional to 27,663.86, 38,175.94 and 15,727.20 is: 21,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663.86 : 38,175.94 = 15,727.20 : x
  2. Step 2: Convert to fraction form
    27,663.86/38,175.94 = 15,727.20/x
  3. Step 3: Cross multiply
    27,663.86x = 38,175.94 × 15,727.20
  4. Step 4: Simplify right side
    27,663.86x = 600,400,643.57
  5. Step 5: Solve for x
    x = 600,400,643.57/27,663.86
  6. Step 6: Final answer
    x = 21,703.43

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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.