Home / 21,399.19-32,098.78-5,816.81

Finding the Fourth Proportional to 21,399.19, 32,098.78 and 5,816.81

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Solution

The fourth proportional to 21,399.19, 32,098.78 and 5,816.81 is: 8,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.19 : 32,098.78 = 5,816.81 : x
  2. Step 2: Convert to fraction form
    21,399.19/32,098.78 = 5,816.81/x
  3. Step 3: Cross multiply
    21,399.19x = 32,098.78 × 5,816.81
  4. Step 4: Simplify right side
    21,399.19x = 186,712,592.01
  5. Step 5: Solve for x
    x = 186,712,592.01/21,399.19
  6. Step 6: Final answer
    x = 8,725.22

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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.