Home / 30,503.86-42,100.77-22,144.66

Finding the Fourth Proportional to 30,503.86, 42,100.77 and 22,144.66

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Solution

The fourth proportional to 30,503.86, 42,100.77 and 22,144.66 is: 30,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,503.86 : 42,100.77 = 22,144.66 : x
  2. Step 2: Convert to fraction form
    30,503.86/42,100.77 = 22,144.66/x
  3. Step 3: Cross multiply
    30,503.86x = 42,100.77 × 22,144.66
  4. Step 4: Simplify right side
    30,503.86x = 932,307,237.39
  5. Step 5: Solve for x
    x = 932,307,237.39/30,503.86
  6. Step 6: Final answer
    x = 30,563.58

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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.