Home / 47,985.12-71,982.40-14,704.80

Finding the Fourth Proportional to 47,985.12, 71,982.40 and 14,704.80

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Solution

The fourth proportional to 47,985.12, 71,982.40 and 14,704.80 is: 22,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,985.12 : 71,982.40 = 14,704.80 : x
  2. Step 2: Convert to fraction form
    47,985.12/71,982.40 = 14,704.80/x
  3. Step 3: Cross multiply
    47,985.12x = 71,982.40 × 14,704.80
  4. Step 4: Simplify right side
    47,985.12x = 1,058,486,795.52
  5. Step 5: Solve for x
    x = 1,058,486,795.52/47,985.12
  6. Step 6: Final answer
    x = 22,058.65

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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.