Home / 28,294.56-42,405.30-11,635.38

Finding the Fourth Proportional to 28,294.56, 42,405.30 and 11,635.38

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Solution

The fourth proportional to 28,294.56, 42,405.30 and 11,635.38 is: 17,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.56 : 42,405.30 = 11,635.38 : x
  2. Step 2: Convert to fraction form
    28,294.56/42,405.30 = 11,635.38/x
  3. Step 3: Cross multiply
    28,294.56x = 42,405.30 × 11,635.38
  4. Step 4: Simplify right side
    28,294.56x = 493,401,779.51
  5. Step 5: Solve for x
    x = 493,401,779.51/28,294.56
  6. Step 6: Final answer
    x = 17,438.04

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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.