Home / 30,585.58-42,188.66-22,100.15

Finding the Fourth Proportional to 30,585.58, 42,188.66 and 22,100.15

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Solution

The fourth proportional to 30,585.58, 42,188.66 and 22,100.15 is: 30,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.58 : 42,188.66 = 22,100.15 : x
  2. Step 2: Convert to fraction form
    30,585.58/42,188.66 = 22,100.15/x
  3. Step 3: Cross multiply
    30,585.58x = 42,188.66 × 22,100.15
  4. Step 4: Simplify right side
    30,585.58x = 932,375,603.80
  5. Step 5: Solve for x
    x = 932,375,603.80/30,585.58
  6. Step 6: Final answer
    x = 30,484.16

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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.