Home / 20,797.16-28,707.90-14,117.36

Finding the Fourth Proportional to 20,797.16, 28,707.90 and 14,117.36

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Solution

The fourth proportional to 20,797.16, 28,707.90 and 14,117.36 is: 19,487.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.16 : 28,707.90 = 14,117.36 : x
  2. Step 2: Convert to fraction form
    20,797.16/28,707.90 = 14,117.36/x
  3. Step 3: Cross multiply
    20,797.16x = 28,707.90 × 14,117.36
  4. Step 4: Simplify right side
    20,797.16x = 405,279,759.14
  5. Step 5: Solve for x
    x = 405,279,759.14/20,797.16
  6. Step 6: Final answer
    x = 19,487.26

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1.5x scale

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.