Home / 36,060.12-53,985.15-21,021.39

Finding the Fourth Proportional to 36,060.12, 53,985.15 and 21,021.39

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Solution

The fourth proportional to 36,060.12, 53,985.15 and 21,021.39 is: 31,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,060.12 : 53,985.15 = 21,021.39 : x
  2. Step 2: Convert to fraction form
    36,060.12/53,985.15 = 21,021.39/x
  3. Step 3: Cross multiply
    36,060.12x = 53,985.15 × 21,021.39
  4. Step 4: Simplify right side
    36,060.12x = 1,134,842,892.36
  5. Step 5: Solve for x
    x = 1,134,842,892.36/36,060.12
  6. Step 6: Final answer
    x = 31,470.86

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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.