Home / 27,726.30-38,261.16-15,150.78

Finding the Fourth Proportional to 27,726.30, 38,261.16 and 15,150.78

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Solution

The fourth proportional to 27,726.30, 38,261.16 and 15,150.78 is: 20,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,726.30 : 38,261.16 = 15,150.78 : x
  2. Step 2: Convert to fraction form
    27,726.30/38,261.16 = 15,150.78/x
  3. Step 3: Cross multiply
    27,726.30x = 38,261.16 × 15,150.78
  4. Step 4: Simplify right side
    27,726.30x = 579,686,417.70
  5. Step 5: Solve for x
    x = 579,686,417.70/27,726.30
  6. Step 6: Final answer
    x = 20,907.46

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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.