Home / 42,922.34-64,392.78-17,621.90

Finding the Fourth Proportional to 42,922.34, 64,392.78 and 17,621.90

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Solution

The fourth proportional to 42,922.34, 64,392.78 and 17,621.90 is: 26,436.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,922.34 : 64,392.78 = 17,621.90 : x
  2. Step 2: Convert to fraction form
    42,922.34/64,392.78 = 17,621.90/x
  3. Step 3: Cross multiply
    42,922.34x = 64,392.78 × 17,621.90
  4. Step 4: Simplify right side
    42,922.34x = 1,134,723,129.88
  5. Step 5: Solve for x
    x = 1,134,723,129.88/42,922.34
  6. Step 6: Final answer
    x = 26,436.66

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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.