Home / 20,431.62-30,618.71-16,253.10

Finding the Fourth Proportional to 20,431.62, 30,618.71 and 16,253.10

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Solution

The fourth proportional to 20,431.62, 30,618.71 and 16,253.10 is: 24,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431.62 : 30,618.71 = 16,253.10 : x
  2. Step 2: Convert to fraction form
    20,431.62/30,618.71 = 16,253.10/x
  3. Step 3: Cross multiply
    20,431.62x = 30,618.71 × 16,253.10
  4. Step 4: Simplify right side
    20,431.62x = 497,648,955.50
  5. Step 5: Solve for x
    x = 497,648,955.50/20,431.62
  6. Step 6: Final answer
    x = 24,356.80

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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.