Home / 19,581.77-29,372.51-4,790.90

Finding the Fourth Proportional to 19,581.77, 29,372.51 and 4,790.90

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Solution

The fourth proportional to 19,581.77, 29,372.51 and 4,790.90 is: 7,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.77 : 29,372.51 = 4,790.90 : x
  2. Step 2: Convert to fraction form
    19,581.77/29,372.51 = 4,790.90/x
  3. Step 3: Cross multiply
    19,581.77x = 29,372.51 × 4,790.90
  4. Step 4: Simplify right side
    19,581.77x = 140,720,623.27
  5. Step 5: Solve for x
    x = 140,720,623.27/19,581.77
  6. Step 6: Final answer
    x = 7,186.31

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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.