Home / 30,692.28-46,031.52-11,972.88

Finding the Fourth Proportional to 30,692.28, 46,031.52 and 11,972.88

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Solution

The fourth proportional to 30,692.28, 46,031.52 and 11,972.88 is: 17,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692.28 : 46,031.52 = 11,972.88 : x
  2. Step 2: Convert to fraction form
    30,692.28/46,031.52 = 11,972.88/x
  3. Step 3: Cross multiply
    30,692.28x = 46,031.52 × 11,972.88
  4. Step 4: Simplify right side
    30,692.28x = 551,129,865.18
  5. Step 5: Solve for x
    x = 551,129,865.18/30,692.28
  6. Step 6: Final answer
    x = 17,956.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.