Home / 30,330.72-45,465.30-11,605.95

Finding the Fourth Proportional to 30,330.72, 45,465.30 and 11,605.95

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Solution

The fourth proportional to 30,330.72, 45,465.30 and 11,605.95 is: 17,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.72 : 45,465.30 = 11,605.95 : x
  2. Step 2: Convert to fraction form
    30,330.72/45,465.30 = 11,605.95/x
  3. Step 3: Cross multiply
    30,330.72x = 45,465.30 × 11,605.95
  4. Step 4: Simplify right side
    30,330.72x = 527,667,998.54
  5. Step 5: Solve for x
    x = 527,667,998.54/30,330.72
  6. Step 6: Final answer
    x = 17,397.15

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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.