Home / 18,829.58-28,258.95-10,071.86

Finding the Fourth Proportional to 18,829.58, 28,258.95 and 10,071.86

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Solution

The fourth proportional to 18,829.58, 28,258.95 and 10,071.86 is: 15,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.58 : 28,258.95 = 10,071.86 : x
  2. Step 2: Convert to fraction form
    18,829.58/28,258.95 = 10,071.86/x
  3. Step 3: Cross multiply
    18,829.58x = 28,258.95 × 10,071.86
  4. Step 4: Simplify right side
    18,829.58x = 284,620,188.15
  5. Step 5: Solve for x
    x = 284,620,188.15/18,829.58
  6. Step 6: Final answer
    x = 15,115.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.