Home / 28,016.36-38,650.32-18,443.91

Finding the Fourth Proportional to 28,016.36, 38,650.32 and 18,443.91

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Solution

The fourth proportional to 28,016.36, 38,650.32 and 18,443.91 is: 25,444.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.36 : 38,650.32 = 18,443.91 : x
  2. Step 2: Convert to fraction form
    28,016.36/38,650.32 = 18,443.91/x
  3. Step 3: Cross multiply
    28,016.36x = 38,650.32 × 18,443.91
  4. Step 4: Simplify right side
    28,016.36x = 712,863,023.55
  5. Step 5: Solve for x
    x = 712,863,023.55/28,016.36
  6. Step 6: Final answer
    x = 25,444.53

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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.