Home / 20,349.48-30,514.46-8,656.36

Finding the Fourth Proportional to 20,349.48, 30,514.46 and 8,656.36

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Solution

The fourth proportional to 20,349.48, 30,514.46 and 8,656.36 is: 12,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.48 : 30,514.46 = 8,656.36 : x
  2. Step 2: Convert to fraction form
    20,349.48/30,514.46 = 8,656.36/x
  3. Step 3: Cross multiply
    20,349.48x = 30,514.46 × 8,656.36
  4. Step 4: Simplify right side
    20,349.48x = 264,144,150.97
  5. Step 5: Solve for x
    x = 264,144,150.97/20,349.48
  6. Step 6: Final answer
    x = 12,980.39

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1.5x scale

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.