Home / 47,643.20-71,448.28-19,555.28

Finding the Fourth Proportional to 47,643.20, 71,448.28 and 19,555.28

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Solution

The fourth proportional to 47,643.20, 71,448.28 and 19,555.28 is: 29,326.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,643.20 : 71,448.28 = 19,555.28 : x
  2. Step 2: Convert to fraction form
    47,643.20/71,448.28 = 19,555.28/x
  3. Step 3: Cross multiply
    47,643.20x = 71,448.28 × 19,555.28
  4. Step 4: Simplify right side
    47,643.20x = 1,397,191,120.92
  5. Step 5: Solve for x
    x = 1,397,191,120.92/47,643.20
  6. Step 6: Final answer
    x = 29,326.14

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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.