Home / 30,690.77-42,346.90-17,941.49

Finding the Fourth Proportional to 30,690.77, 42,346.90 and 17,941.49

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Solution

The fourth proportional to 30,690.77, 42,346.90 and 17,941.49 is: 24,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.77 : 42,346.90 = 17,941.49 : x
  2. Step 2: Convert to fraction form
    30,690.77/42,346.90 = 17,941.49/x
  3. Step 3: Cross multiply
    30,690.77x = 42,346.90 × 17,941.49
  4. Step 4: Simplify right side
    30,690.77x = 759,766,226.29
  5. Step 5: Solve for x
    x = 759,766,226.29/30,690.77
  6. Step 6: Final answer
    x = 24,755.53

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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.