Home / 30,036.28-45,060.88-8,978.03

Finding the Fourth Proportional to 30,036.28, 45,060.88 and 8,978.03

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Solution

The fourth proportional to 30,036.28, 45,060.88 and 8,978.03 is: 13,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,036.28 : 45,060.88 = 8,978.03 : x
  2. Step 2: Convert to fraction form
    30,036.28/45,060.88 = 8,978.03/x
  3. Step 3: Cross multiply
    30,036.28x = 45,060.88 × 8,978.03
  4. Step 4: Simplify right side
    30,036.28x = 404,557,932.47
  5. Step 5: Solve for x
    x = 404,557,932.47/30,036.28
  6. Step 6: Final answer
    x = 13,468.98

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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.