Home / 30,143.73-45,226.44-10,424.28

Finding the Fourth Proportional to 30,143.73, 45,226.44 and 10,424.28

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Solution

The fourth proportional to 30,143.73, 45,226.44 and 10,424.28 is: 15,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143.73 : 45,226.44 = 10,424.28 : x
  2. Step 2: Convert to fraction form
    30,143.73/45,226.44 = 10,424.28/x
  3. Step 3: Cross multiply
    30,143.73x = 45,226.44 × 10,424.28
  4. Step 4: Simplify right side
    30,143.73x = 471,453,073.96
  5. Step 5: Solve for x
    x = 471,453,073.96/30,143.73
  6. Step 6: Final answer
    x = 15,640.17

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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.