Home / 28,446.68-42,666.26-8,455.76

Finding the Fourth Proportional to 28,446.68, 42,666.26 and 8,455.76

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Solution

The fourth proportional to 28,446.68, 42,666.26 and 8,455.76 is: 12,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.68 : 42,666.26 = 8,455.76 : x
  2. Step 2: Convert to fraction form
    28,446.68/42,666.26 = 8,455.76/x
  3. Step 3: Cross multiply
    28,446.68x = 42,666.26 × 8,455.76
  4. Step 4: Simplify right side
    28,446.68x = 360,775,654.66
  5. Step 5: Solve for x
    x = 360,775,654.66/28,446.68
  6. Step 6: Final answer
    x = 12,682.52

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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.