Home / 30,656.32-45,947.48-15,857.36

Finding the Fourth Proportional to 30,656.32, 45,947.48 and 15,857.36

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Solution

The fourth proportional to 30,656.32, 45,947.48 and 15,857.36 is: 23,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.32 : 45,947.48 = 15,857.36 : x
  2. Step 2: Convert to fraction form
    30,656.32/45,947.48 = 15,857.36/x
  3. Step 3: Cross multiply
    30,656.32x = 45,947.48 × 15,857.36
  4. Step 4: Simplify right side
    30,656.32x = 728,605,731.45
  5. Step 5: Solve for x
    x = 728,605,731.45/30,656.32
  6. Step 6: Final answer
    x = 23,766.90

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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.