Home / 47,269.12-70,902.88-13,989

Finding the Fourth Proportional to 47,269.12, 70,902.88 and 13,989

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Solution

The fourth proportional to 47,269.12, 70,902.88 and 13,989 is: 20,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,269.12 : 70,902.88 = 13,989 : x
  2. Step 2: Convert to fraction form
    47,269.12/70,902.88 = 13,989/x
  3. Step 3: Cross multiply
    47,269.12x = 70,902.88 × 13,989
  4. Step 4: Simplify right side
    47,269.12x = 991,860,388.32
  5. Step 5: Solve for x
    x = 991,860,388.32/47,269.12
  6. Step 6: Final answer
    x = 20,983.26

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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.