Home / 21,439.08-32,012.01-19,203.48

Finding the Fourth Proportional to 21,439.08, 32,012.01 and 19,203.48

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Solution

The fourth proportional to 21,439.08, 32,012.01 and 19,203.48 is: 28,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.08 : 32,012.01 = 19,203.48 : x
  2. Step 2: Convert to fraction form
    21,439.08/32,012.01 = 19,203.48/x
  3. Step 3: Cross multiply
    21,439.08x = 32,012.01 × 19,203.48
  4. Step 4: Simplify right side
    21,439.08x = 614,741,993.79
  5. Step 5: Solve for x
    x = 614,741,993.79/21,439.08
  6. Step 6: Final answer
    x = 28,673.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.