Home / 20,308.67-28,031.04-16,259.69

Finding the Fourth Proportional to 20,308.67, 28,031.04 and 16,259.69

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Solution

The fourth proportional to 20,308.67, 28,031.04 and 16,259.69 is: 22,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.67 : 28,031.04 = 16,259.69 : x
  2. Step 2: Convert to fraction form
    20,308.67/28,031.04 = 16,259.69/x
  3. Step 3: Cross multiply
    20,308.67x = 28,031.04 × 16,259.69
  4. Step 4: Simplify right side
    20,308.67x = 455,776,020.78
  5. Step 5: Solve for x
    x = 455,776,020.78/20,308.67
  6. Step 6: Final answer
    x = 22,442.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.