Home / 21,709.12-32,562.24-12,998.08

Finding the Fourth Proportional to 21,709.12, 32,562.24 and 12,998.08

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Solution

The fourth proportional to 21,709.12, 32,562.24 and 12,998.08 is: 19,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.12 : 32,562.24 = 12,998.08 : x
  2. Step 2: Convert to fraction form
    21,709.12/32,562.24 = 12,998.08/x
  3. Step 3: Cross multiply
    21,709.12x = 32,562.24 × 12,998.08
  4. Step 4: Simplify right side
    21,709.12x = 423,246,600.50
  5. Step 5: Solve for x
    x = 423,246,600.50/21,709.12
  6. Step 6: Final answer
    x = 19,496.26

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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.