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Finding the Fourth Proportional to 21,373.45, 32,032.23 and 11,491.45

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Solution

The fourth proportional to 21,373.45, 32,032.23 and 11,491.45 is: 17,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.45 : 32,032.23 = 11,491.45 : x
  2. Step 2: Convert to fraction form
    21,373.45/32,032.23 = 11,491.45/x
  3. Step 3: Cross multiply
    21,373.45x = 32,032.23 × 11,491.45
  4. Step 4: Simplify right side
    21,373.45x = 368,096,646.26
  5. Step 5: Solve for x
    x = 368,096,646.26/21,373.45
  6. Step 6: Final answer
    x = 17,222.15

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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.