Home / 18,989.04-26,200.44-16,345.20

Finding the Fourth Proportional to 18,989.04, 26,200.44 and 16,345.20

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Solution

The fourth proportional to 18,989.04, 26,200.44 and 16,345.20 is: 22,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.04 : 26,200.44 = 16,345.20 : x
  2. Step 2: Convert to fraction form
    18,989.04/26,200.44 = 16,345.20/x
  3. Step 3: Cross multiply
    18,989.04x = 26,200.44 × 16,345.20
  4. Step 4: Simplify right side
    18,989.04x = 428,251,431.89
  5. Step 5: Solve for x
    x = 428,251,431.89/18,989.04
  6. Step 6: Final answer
    x = 22,552.56

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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.