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Finding the Fourth Proportional to 21,342.49, 32,017.49 and 7,299.21

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Solution

The fourth proportional to 21,342.49, 32,017.49 and 7,299.21 is: 10,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.49 : 32,017.49 = 7,299.21 : x
  2. Step 2: Convert to fraction form
    21,342.49/32,017.49 = 7,299.21/x
  3. Step 3: Cross multiply
    21,342.49x = 32,017.49 × 7,299.21
  4. Step 4: Simplify right side
    21,342.49x = 233,702,346.69
  5. Step 5: Solve for x
    x = 233,702,346.69/21,342.49
  6. Step 6: Final answer
    x = 10,950.10

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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.