Home / 28,686.76-43,035.60-11,155.22

Finding the Fourth Proportional to 28,686.76, 43,035.60 and 11,155.22

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Solution

The fourth proportional to 28,686.76, 43,035.60 and 11,155.22 is: 16,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.76 : 43,035.60 = 11,155.22 : x
  2. Step 2: Convert to fraction form
    28,686.76/43,035.60 = 11,155.22/x
  3. Step 3: Cross multiply
    28,686.76x = 43,035.60 × 11,155.22
  4. Step 4: Simplify right side
    28,686.76x = 480,071,573.87
  5. Step 5: Solve for x
    x = 480,071,573.87/28,686.76
  6. Step 6: Final answer
    x = 16,734.95

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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.