Home / 20,514.32-30,835.71-13,539.16

Finding the Fourth Proportional to 20,514.32, 30,835.71 and 13,539.16

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Solution

The fourth proportional to 20,514.32, 30,835.71 and 13,539.16 is: 20,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.32 : 30,835.71 = 13,539.16 : x
  2. Step 2: Convert to fraction form
    20,514.32/30,835.71 = 13,539.16/x
  3. Step 3: Cross multiply
    20,514.32x = 30,835.71 × 13,539.16
  4. Step 4: Simplify right side
    20,514.32x = 417,489,534.31
  5. Step 5: Solve for x
    x = 417,489,534.31/20,514.32
  6. Step 6: Final answer
    x = 20,351.13

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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.