Home / 42,824.78-64,215.03-18,799.25

Finding the Fourth Proportional to 42,824.78, 64,215.03 and 18,799.25

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Solution

The fourth proportional to 42,824.78, 64,215.03 and 18,799.25 is: 28,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,824.78 : 64,215.03 = 18,799.25 : x
  2. Step 2: Convert to fraction form
    42,824.78/64,215.03 = 18,799.25/x
  3. Step 3: Cross multiply
    42,824.78x = 64,215.03 × 18,799.25
  4. Step 4: Simplify right side
    42,824.78x = 1,207,194,322.46
  5. Step 5: Solve for x
    x = 1,207,194,322.46/42,824.78
  6. Step 6: Final answer
    x = 28,189.15

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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.