Home / 28,692.13-42,958.36-14,621.82

Finding the Fourth Proportional to 28,692.13, 42,958.36 and 14,621.82

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Solution

The fourth proportional to 28,692.13, 42,958.36 and 14,621.82 is: 21,892.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.13 : 42,958.36 = 14,621.82 : x
  2. Step 2: Convert to fraction form
    28,692.13/42,958.36 = 14,621.82/x
  3. Step 3: Cross multiply
    28,692.13x = 42,958.36 × 14,621.82
  4. Step 4: Simplify right side
    28,692.13x = 628,129,407.42
  5. Step 5: Solve for x
    x = 628,129,407.42/28,692.13
  6. Step 6: Final answer
    x = 21,892.05

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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.