Home / 21,994.28-32,991.42-18,086.84

Finding the Fourth Proportional to 21,994.28, 32,991.42 and 18,086.84

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Solution

The fourth proportional to 21,994.28, 32,991.42 and 18,086.84 is: 27,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.28 : 32,991.42 = 18,086.84 : x
  2. Step 2: Convert to fraction form
    21,994.28/32,991.42 = 18,086.84/x
  3. Step 3: Cross multiply
    21,994.28x = 32,991.42 × 18,086.84
  4. Step 4: Simplify right side
    21,994.28x = 596,710,534.91
  5. Step 5: Solve for x
    x = 596,710,534.91/21,994.28
  6. Step 6: Final answer
    x = 27,130.26

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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.