Home / 27,904.10-38,508.35-15,157.28

Finding the Fourth Proportional to 27,904.10, 38,508.35 and 15,157.28

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Solution

The fourth proportional to 27,904.10, 38,508.35 and 15,157.28 is: 20,917.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,904.10 : 38,508.35 = 15,157.28 : x
  2. Step 2: Convert to fraction form
    27,904.10/38,508.35 = 15,157.28/x
  3. Step 3: Cross multiply
    27,904.10x = 38,508.35 × 15,157.28
  4. Step 4: Simplify right side
    27,904.10x = 583,681,723.10
  5. Step 5: Solve for x
    x = 583,681,723.10/27,904.10
  6. Step 6: Final answer
    x = 20,917.42

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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.