Home / 20,774.08-31,161.14-16,458.40

Finding the Fourth Proportional to 20,774.08, 31,161.14 and 16,458.40

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Solution

The fourth proportional to 20,774.08, 31,161.14 and 16,458.40 is: 24,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.08 : 31,161.14 = 16,458.40 : x
  2. Step 2: Convert to fraction form
    20,774.08/31,161.14 = 16,458.40/x
  3. Step 3: Cross multiply
    20,774.08x = 31,161.14 × 16,458.40
  4. Step 4: Simplify right side
    20,774.08x = 512,862,506.58
  5. Step 5: Solve for x
    x = 512,862,506.58/20,774.08
  6. Step 6: Final answer
    x = 24,687.62

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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.