Home / 21,383.55-32,089.09-11,529.70

Finding the Fourth Proportional to 21,383.55, 32,089.09 and 11,529.70

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Solution

The fourth proportional to 21,383.55, 32,089.09 and 11,529.70 is: 17,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.55 : 32,089.09 = 11,529.70 : x
  2. Step 2: Convert to fraction form
    21,383.55/32,089.09 = 11,529.70/x
  3. Step 3: Cross multiply
    21,383.55x = 32,089.09 × 11,529.70
  4. Step 4: Simplify right side
    21,383.55x = 369,977,580.97
  5. Step 5: Solve for x
    x = 369,977,580.97/21,383.55
  6. Step 6: Final answer
    x = 17,301.97

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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.