Home / 21,623.76-32,416.12-7,769.52

Finding the Fourth Proportional to 21,623.76, 32,416.12 and 7,769.52

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Solution

The fourth proportional to 21,623.76, 32,416.12 and 7,769.52 is: 11,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.76 : 32,416.12 = 7,769.52 : x
  2. Step 2: Convert to fraction form
    21,623.76/32,416.12 = 7,769.52/x
  3. Step 3: Cross multiply
    21,623.76x = 32,416.12 × 7,769.52
  4. Step 4: Simplify right side
    21,623.76x = 251,857,692.66
  5. Step 5: Solve for x
    x = 251,857,692.66/21,623.76
  6. Step 6: Final answer
    x = 11,647.27

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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.