Home / 30,621.51-45,942.51-11,902.17

Finding the Fourth Proportional to 30,621.51, 45,942.51 and 11,902.17

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Solution

The fourth proportional to 30,621.51, 45,942.51 and 11,902.17 is: 17,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.51 : 45,942.51 = 11,902.17 : x
  2. Step 2: Convert to fraction form
    30,621.51/45,942.51 = 11,902.17/x
  3. Step 3: Cross multiply
    30,621.51x = 45,942.51 × 11,902.17
  4. Step 4: Simplify right side
    30,621.51x = 546,815,564.25
  5. Step 5: Solve for x
    x = 546,815,564.25/30,621.51
  6. Step 6: Final answer
    x = 17,857.24

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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.