Home / 27,660.81-38,175.14-15,725.93

Finding the Fourth Proportional to 27,660.81, 38,175.14 and 15,725.93

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Solution

The fourth proportional to 27,660.81, 38,175.14 and 15,725.93 is: 21,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.81 : 38,175.14 = 15,725.93 : x
  2. Step 2: Convert to fraction form
    27,660.81/38,175.14 = 15,725.93/x
  3. Step 3: Cross multiply
    27,660.81x = 38,175.14 × 15,725.93
  4. Step 4: Simplify right side
    27,660.81x = 600,339,714.13
  5. Step 5: Solve for x
    x = 600,339,714.13/27,660.81
  6. Step 6: Final answer
    x = 21,703.62

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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.