Home / 36,985.60-55,442.40-21,174.40

Finding the Fourth Proportional to 36,985.60, 55,442.40 and 21,174.40

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Solution

The fourth proportional to 36,985.60, 55,442.40 and 21,174.40 is: 31,740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,985.60 : 55,442.40 = 21,174.40 : x
  2. Step 2: Convert to fraction form
    36,985.60/55,442.40 = 21,174.40/x
  3. Step 3: Cross multiply
    36,985.60x = 55,442.40 × 21,174.40
  4. Step 4: Simplify right side
    36,985.60x = 1,173,959,554.56
  5. Step 5: Solve for x
    x = 1,173,959,554.56/36,985.60
  6. Step 6: Final answer
    x = 31,740.99

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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.