Home / 21,775.57-32,619.61-18,429.46

Finding the Fourth Proportional to 21,775.57, 32,619.61 and 18,429.46

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Solution

The fourth proportional to 21,775.57, 32,619.61 and 18,429.46 is: 27,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.57 : 32,619.61 = 18,429.46 : x
  2. Step 2: Convert to fraction form
    21,775.57/32,619.61 = 18,429.46/x
  3. Step 3: Cross multiply
    21,775.57x = 32,619.61 × 18,429.46
  4. Step 4: Simplify right side
    21,775.57x = 601,161,739.20
  5. Step 5: Solve for x
    x = 601,161,739.20/21,775.57
  6. Step 6: Final answer
    x = 27,607.17

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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.