Home / 36,218.48-49,979.40-20,300

Finding the Fourth Proportional to 36,218.48, 49,979.40 and 20,300

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Solution

The fourth proportional to 36,218.48, 49,979.40 and 20,300 is: 28,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.48 : 49,979.40 = 20,300 : x
  2. Step 2: Convert to fraction form
    36,218.48/49,979.40 = 20,300/x
  3. Step 3: Cross multiply
    36,218.48x = 49,979.40 × 20,300
  4. Step 4: Simplify right side
    36,218.48x = 1,014,581,820
  5. Step 5: Solve for x
    x = 1,014,581,820/36,218.48
  6. Step 6: Final answer
    x = 28,012.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.