Home / 27,866.34-38,448.78-15,767.04

Finding the Fourth Proportional to 27,866.34, 38,448.78 and 15,767.04

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Solution

The fourth proportional to 27,866.34, 38,448.78 and 15,767.04 is: 21,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.34 : 38,448.78 = 15,767.04 : x
  2. Step 2: Convert to fraction form
    27,866.34/38,448.78 = 15,767.04/x
  3. Step 3: Cross multiply
    27,866.34x = 38,448.78 × 15,767.04
  4. Step 4: Simplify right side
    27,866.34x = 606,223,452.21
  5. Step 5: Solve for x
    x = 606,223,452.21/27,866.34
  6. Step 6: Final answer
    x = 21,754.69

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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.