Home / 21,463.79-32,189.87-8,981.26

Finding the Fourth Proportional to 21,463.79, 32,189.87 and 8,981.26

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Solution

The fourth proportional to 21,463.79, 32,189.87 and 8,981.26 is: 13,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.79 : 32,189.87 = 8,981.26 : x
  2. Step 2: Convert to fraction form
    21,463.79/32,189.87 = 8,981.26/x
  3. Step 3: Cross multiply
    21,463.79x = 32,189.87 × 8,981.26
  4. Step 4: Simplify right side
    21,463.79x = 289,105,533.81
  5. Step 5: Solve for x
    x = 289,105,533.81/21,463.79
  6. Step 6: Final answer
    x = 13,469.46

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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.