Home / 27,836.16-38,415.84-15,261.72

Finding the Fourth Proportional to 27,836.16, 38,415.84 and 15,261.72

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Solution

The fourth proportional to 27,836.16, 38,415.84 and 15,261.72 is: 21,062.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,836.16 : 38,415.84 = 15,261.72 : x
  2. Step 2: Convert to fraction form
    27,836.16/38,415.84 = 15,261.72/x
  3. Step 3: Cross multiply
    27,836.16x = 38,415.84 × 15,261.72
  4. Step 4: Simplify right side
    27,836.16x = 586,291,793.64
  5. Step 5: Solve for x
    x = 586,291,793.64/27,836.16
  6. Step 6: Final answer
    x = 21,062.24

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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.