Home / 28,181.68-42,265.76-9,462.40

Finding the Fourth Proportional to 28,181.68, 42,265.76 and 9,462.40

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Solution

The fourth proportional to 28,181.68, 42,265.76 and 9,462.40 is: 14,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.68 : 42,265.76 = 9,462.40 : x
  2. Step 2: Convert to fraction form
    28,181.68/42,265.76 = 9,462.40/x
  3. Step 3: Cross multiply
    28,181.68x = 42,265.76 × 9,462.40
  4. Step 4: Simplify right side
    28,181.68x = 399,935,527.42
  5. Step 5: Solve for x
    x = 399,935,527.42/28,181.68
  6. Step 6: Final answer
    x = 14,191.33

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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.