Home / 30,599.97-42,221.73-22,115.01

Finding the Fourth Proportional to 30,599.97, 42,221.73 and 22,115.01

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Solution

The fourth proportional to 30,599.97, 42,221.73 and 22,115.01 is: 30,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.97 : 42,221.73 = 22,115.01 : x
  2. Step 2: Convert to fraction form
    30,599.97/42,221.73 = 22,115.01/x
  3. Step 3: Cross multiply
    30,599.97x = 42,221.73 × 22,115.01
  4. Step 4: Simplify right side
    30,599.97x = 933,733,981.17
  5. Step 5: Solve for x
    x = 933,733,981.17/30,599.97
  6. Step 6: Final answer
    x = 30,514.21

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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.