Home / 30,790.24-42,494.94-22,320.40

Finding the Fourth Proportional to 30,790.24, 42,494.94 and 22,320.40

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Solution

The fourth proportional to 30,790.24, 42,494.94 and 22,320.40 is: 30,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.24 : 42,494.94 = 22,320.40 : x
  2. Step 2: Convert to fraction form
    30,790.24/42,494.94 = 22,320.40/x
  3. Step 3: Cross multiply
    30,790.24x = 42,494.94 × 22,320.40
  4. Step 4: Simplify right side
    30,790.24x = 948,504,058.78
  5. Step 5: Solve for x
    x = 948,504,058.78/30,790.24
  6. Step 6: Final answer
    x = 30,805.35

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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.