Home / 27,628.62-38,117.44-15,685.04

Finding the Fourth Proportional to 27,628.62, 38,117.44 and 15,685.04

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Solution

The fourth proportional to 27,628.62, 38,117.44 and 15,685.04 is: 21,639.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.62 : 38,117.44 = 15,685.04 : x
  2. Step 2: Convert to fraction form
    27,628.62/38,117.44 = 15,685.04/x
  3. Step 3: Cross multiply
    27,628.62x = 38,117.44 × 15,685.04
  4. Step 4: Simplify right side
    27,628.62x = 597,873,597.77
  5. Step 5: Solve for x
    x = 597,873,597.77/27,628.62
  6. Step 6: Final answer
    x = 21,639.65

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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.