Home / 47,208.44-70,812-19,128.26

Finding the Fourth Proportional to 47,208.44, 70,812 and 19,128.26

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Solution

The fourth proportional to 47,208.44, 70,812 and 19,128.26 is: 28,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,208.44 : 70,812 = 19,128.26 : x
  2. Step 2: Convert to fraction form
    47,208.44/70,812 = 19,128.26/x
  3. Step 3: Cross multiply
    47,208.44x = 70,812 × 19,128.26
  4. Step 4: Simplify right side
    47,208.44x = 1,354,510,347.12
  5. Step 5: Solve for x
    x = 1,354,510,347.12/47,208.44
  6. Step 6: Final answer
    x = 28,692.12

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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.