Home / 20,929.59-31,410.18-11,071.08

Finding the Fourth Proportional to 20,929.59, 31,410.18 and 11,071.08

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Solution

The fourth proportional to 20,929.59, 31,410.18 and 11,071.08 is: 16,614.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.59 : 31,410.18 = 11,071.08 : x
  2. Step 2: Convert to fraction form
    20,929.59/31,410.18 = 11,071.08/x
  3. Step 3: Cross multiply
    20,929.59x = 31,410.18 × 11,071.08
  4. Step 4: Simplify right side
    20,929.59x = 347,744,615.59
  5. Step 5: Solve for x
    x = 347,744,615.59/20,929.59
  6. Step 6: Final answer
    x = 16,614.98

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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.