Home / 28,305.72-42,463.70-11,656.67

Finding the Fourth Proportional to 28,305.72, 42,463.70 and 11,656.67

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Solution

The fourth proportional to 28,305.72, 42,463.70 and 11,656.67 is: 17,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.72 : 42,463.70 = 11,656.67 : x
  2. Step 2: Convert to fraction form
    28,305.72/42,463.70 = 11,656.67/x
  3. Step 3: Cross multiply
    28,305.72x = 42,463.70 × 11,656.67
  4. Step 4: Simplify right side
    28,305.72x = 494,985,473.18
  5. Step 5: Solve for x
    x = 494,985,473.18/28,305.72
  6. Step 6: Final answer
    x = 17,487.12

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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.