Home / 30,466.12-42,048.12-17,890.80

Finding the Fourth Proportional to 30,466.12, 42,048.12 and 17,890.80

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Solution

The fourth proportional to 30,466.12, 42,048.12 and 17,890.80 is: 24,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,466.12 : 42,048.12 = 17,890.80 : x
  2. Step 2: Convert to fraction form
    30,466.12/42,048.12 = 17,890.80/x
  3. Step 3: Cross multiply
    30,466.12x = 42,048.12 × 17,890.80
  4. Step 4: Simplify right side
    30,466.12x = 752,274,505.30
  5. Step 5: Solve for x
    x = 752,274,505.30/30,466.12
  6. Step 6: Final answer
    x = 24,692.17

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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.