Home / 47,104.28-70,603.80-20,419.47

Finding the Fourth Proportional to 47,104.28, 70,603.80 and 20,419.47

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Solution

The fourth proportional to 47,104.28, 70,603.80 and 20,419.47 is: 30,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,104.28 : 70,603.80 = 20,419.47 : x
  2. Step 2: Convert to fraction form
    47,104.28/70,603.80 = 20,419.47/x
  3. Step 3: Cross multiply
    47,104.28x = 70,603.80 × 20,419.47
  4. Step 4: Simplify right side
    47,104.28x = 1,441,692,175.99
  5. Step 5: Solve for x
    x = 1,441,692,175.99/47,104.28
  6. Step 6: Final answer
    x = 30,606.39

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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.