Home / 21,967.26-30,313.62-13,015.59

Finding the Fourth Proportional to 21,967.26, 30,313.62 and 13,015.59

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Solution

The fourth proportional to 21,967.26, 30,313.62 and 13,015.59 is: 17,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.26 : 30,313.62 = 13,015.59 : x
  2. Step 2: Convert to fraction form
    21,967.26/30,313.62 = 13,015.59/x
  3. Step 3: Cross multiply
    21,967.26x = 30,313.62 × 13,015.59
  4. Step 4: Simplify right side
    21,967.26x = 394,549,649.34
  5. Step 5: Solve for x
    x = 394,549,649.34/21,967.26
  6. Step 6: Final answer
    x = 17,960.80

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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.