Home / 47,476.76-71,208.96-21,175.40

Finding the Fourth Proportional to 47,476.76, 71,208.96 and 21,175.40

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Solution

The fourth proportional to 47,476.76, 71,208.96 and 21,175.40 is: 31,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,476.76 : 71,208.96 = 21,175.40 : x
  2. Step 2: Convert to fraction form
    47,476.76/71,208.96 = 21,175.40/x
  3. Step 3: Cross multiply
    47,476.76x = 71,208.96 × 21,175.40
  4. Step 4: Simplify right side
    47,476.76x = 1,507,878,211.58
  5. Step 5: Solve for x
    x = 1,507,878,211.58/47,476.76
  6. Step 6: Final answer
    x = 31,760.34

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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.