Home / 42,803.36-64,218-17,855.36

Finding the Fourth Proportional to 42,803.36, 64,218 and 17,855.36

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Solution

The fourth proportional to 42,803.36, 64,218 and 17,855.36 is: 26,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,803.36 : 64,218 = 17,855.36 : x
  2. Step 2: Convert to fraction form
    42,803.36/64,218 = 17,855.36/x
  3. Step 3: Cross multiply
    42,803.36x = 64,218 × 17,855.36
  4. Step 4: Simplify right side
    42,803.36x = 1,146,635,508.48
  5. Step 5: Solve for x
    x = 1,146,635,508.48/42,803.36
  6. Step 6: Final answer
    x = 26,788.45

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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.