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Finding the Fourth Proportional to 21,393.68, 32,094.77 and 10,869.62

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Solution

The fourth proportional to 21,393.68, 32,094.77 and 10,869.62 is: 16,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.68 : 32,094.77 = 10,869.62 : x
  2. Step 2: Convert to fraction form
    21,393.68/32,094.77 = 10,869.62/x
  3. Step 3: Cross multiply
    21,393.68x = 32,094.77 × 10,869.62
  4. Step 4: Simplify right side
    21,393.68x = 348,857,739.07
  5. Step 5: Solve for x
    x = 348,857,739.07/21,393.68
  6. Step 6: Final answer
    x = 16,306.58

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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.