Home / 20,708.42-31,036.70-16,308.50

Finding the Fourth Proportional to 20,708.42, 31,036.70 and 16,308.50

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Solution

The fourth proportional to 20,708.42, 31,036.70 and 16,308.50 is: 24,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.42 : 31,036.70 = 16,308.50 : x
  2. Step 2: Convert to fraction form
    20,708.42/31,036.70 = 16,308.50/x
  3. Step 3: Cross multiply
    20,708.42x = 31,036.70 × 16,308.50
  4. Step 4: Simplify right side
    20,708.42x = 506,162,021.95
  5. Step 5: Solve for x
    x = 506,162,021.95/20,708.42
  6. Step 6: Final answer
    x = 24,442.33

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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.