Home / 28,617.68-42,904.20-11,966.96

Finding the Fourth Proportional to 28,617.68, 42,904.20 and 11,966.96

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Solution

The fourth proportional to 28,617.68, 42,904.20 and 11,966.96 is: 17,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.68 : 42,904.20 = 11,966.96 : x
  2. Step 2: Convert to fraction form
    28,617.68/42,904.20 = 11,966.96/x
  3. Step 3: Cross multiply
    28,617.68x = 42,904.20 × 11,966.96
  4. Step 4: Simplify right side
    28,617.68x = 513,432,845.23
  5. Step 5: Solve for x
    x = 513,432,845.23/28,617.68
  6. Step 6: Final answer
    x = 17,941.11

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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.