Home / 30,621.52-45,942.51-11,902.18

Finding the Fourth Proportional to 30,621.52, 45,942.51 and 11,902.18

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Solution

The fourth proportional to 30,621.52, 45,942.51 and 11,902.18 is: 17,857.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.52 : 45,942.51 = 11,902.18 : x
  2. Step 2: Convert to fraction form
    30,621.52/45,942.51 = 11,902.18/x
  3. Step 3: Cross multiply
    30,621.52x = 45,942.51 × 11,902.18
  4. Step 4: Simplify right side
    30,621.52x = 546,816,023.67
  5. Step 5: Solve for x
    x = 546,816,023.67/30,621.52
  6. Step 6: Final answer
    x = 17,857.25

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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.