Home / 27,698.91-38,222.73-15,123.66

Finding the Fourth Proportional to 27,698.91, 38,222.73 and 15,123.66

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Solution

The fourth proportional to 27,698.91, 38,222.73 and 15,123.66 is: 20,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.91 : 38,222.73 = 15,123.66 : x
  2. Step 2: Convert to fraction form
    27,698.91/38,222.73 = 15,123.66/x
  3. Step 3: Cross multiply
    27,698.91x = 38,222.73 × 15,123.66
  4. Step 4: Simplify right side
    27,698.91x = 578,067,572.79
  5. Step 5: Solve for x
    x = 578,067,572.79/27,698.91
  6. Step 6: Final answer
    x = 20,869.69

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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.