Home / 30,153.88-45,011.18-27,930.42

Finding the Fourth Proportional to 30,153.88, 45,011.18 and 27,930.42

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Solution

The fourth proportional to 30,153.88, 45,011.18 and 27,930.42 is: 41,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.88 : 45,011.18 = 27,930.42 : x
  2. Step 2: Convert to fraction form
    30,153.88/45,011.18 = 27,930.42/x
  3. Step 3: Cross multiply
    30,153.88x = 45,011.18 × 27,930.42
  4. Step 4: Simplify right side
    30,153.88x = 1,257,181,162.10
  5. Step 5: Solve for x
    x = 1,257,181,162.10/30,153.88
  6. Step 6: Final answer
    x = 41,692.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.