Home / 20,844.76-28,745.58-17,657.77

Finding the Fourth Proportional to 20,844.76, 28,745.58 and 17,657.77

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Solution

The fourth proportional to 20,844.76, 28,745.58 and 17,657.77 is: 24,350.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.76 : 28,745.58 = 17,657.77 : x
  2. Step 2: Convert to fraction form
    20,844.76/28,745.58 = 17,657.77/x
  3. Step 3: Cross multiply
    20,844.76x = 28,745.58 × 17,657.77
  4. Step 4: Simplify right side
    20,844.76x = 507,582,840.16
  5. Step 5: Solve for x
    x = 507,582,840.16/20,844.76
  6. Step 6: Final answer
    x = 24,350.62

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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.