Home / 28,208.39-38,931.86-18,003.83

Finding the Fourth Proportional to 28,208.39, 38,931.86 and 18,003.83

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Solution

The fourth proportional to 28,208.39, 38,931.86 and 18,003.83 is: 24,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.39 : 38,931.86 = 18,003.83 : x
  2. Step 2: Convert to fraction form
    28,208.39/38,931.86 = 18,003.83/x
  3. Step 3: Cross multiply
    28,208.39x = 38,931.86 × 18,003.83
  4. Step 4: Simplify right side
    28,208.39x = 700,922,512.37
  5. Step 5: Solve for x
    x = 700,922,512.37/28,208.39
  6. Step 6: Final answer
    x = 24,848.02

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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.