Home / 30,603.33-42,193.85-19,976.13

Finding the Fourth Proportional to 30,603.33, 42,193.85 and 19,976.13

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Solution

The fourth proportional to 30,603.33, 42,193.85 and 19,976.13 is: 27,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,603.33 : 42,193.85 = 19,976.13 : x
  2. Step 2: Convert to fraction form
    30,603.33/42,193.85 = 19,976.13/x
  3. Step 3: Cross multiply
    30,603.33x = 42,193.85 × 19,976.13
  4. Step 4: Simplify right side
    30,603.33x = 842,869,732.92
  5. Step 5: Solve for x
    x = 842,869,732.92/30,603.33
  6. Step 6: Final answer
    x = 27,541.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.