Home / 42,997.08-64,499.94-15,986.64

Finding the Fourth Proportional to 42,997.08, 64,499.94 and 15,986.64

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Solution

The fourth proportional to 42,997.08, 64,499.94 and 15,986.64 is: 23,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,997.08 : 64,499.94 = 15,986.64 : x
  2. Step 2: Convert to fraction form
    42,997.08/64,499.94 = 15,986.64/x
  3. Step 3: Cross multiply
    42,997.08x = 64,499.94 × 15,986.64
  4. Step 4: Simplify right side
    42,997.08x = 1,031,137,320.80
  5. Step 5: Solve for x
    x = 1,031,137,320.80/42,997.08
  6. Step 6: Final answer
    x = 23,981.57

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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.