Home / 19,047.36-28,575.60-7,947.90

Finding the Fourth Proportional to 19,047.36, 28,575.60 and 7,947.90

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Solution

The fourth proportional to 19,047.36, 28,575.60 and 7,947.90 is: 11,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.36 : 28,575.60 = 7,947.90 : x
  2. Step 2: Convert to fraction form
    19,047.36/28,575.60 = 7,947.90/x
  3. Step 3: Cross multiply
    19,047.36x = 28,575.60 × 7,947.90
  4. Step 4: Simplify right side
    19,047.36x = 227,116,011.24
  5. Step 5: Solve for x
    x = 227,116,011.24/19,047.36
  6. Step 6: Final answer
    x = 11,923.75

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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.