Home / 33,127.65-49,691.37-13,420.05

Finding the Fourth Proportional to 33,127.65, 49,691.37 and 13,420.05

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Solution

The fourth proportional to 33,127.65, 49,691.37 and 13,420.05 is: 20,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,127.65 : 49,691.37 = 13,420.05 : x
  2. Step 2: Convert to fraction form
    33,127.65/49,691.37 = 13,420.05/x
  3. Step 3: Cross multiply
    33,127.65x = 49,691.37 × 13,420.05
  4. Step 4: Simplify right side
    33,127.65x = 666,860,533.95
  5. Step 5: Solve for x
    x = 666,860,533.95/33,127.65
  6. Step 6: Final answer
    x = 20,130.03

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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.