Home / 19,581.64-29,372.32-4,790.77

Finding the Fourth Proportional to 19,581.64, 29,372.32 and 4,790.77

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Solution

The fourth proportional to 19,581.64, 29,372.32 and 4,790.77 is: 7,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.64 : 29,372.32 = 4,790.77 : x
  2. Step 2: Convert to fraction form
    19,581.64/29,372.32 = 4,790.77/x
  3. Step 3: Cross multiply
    19,581.64x = 29,372.32 × 4,790.77
  4. Step 4: Simplify right side
    19,581.64x = 140,716,029.49
  5. Step 5: Solve for x
    x = 140,716,029.49/19,581.64
  6. Step 6: Final answer
    x = 7,186.12

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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.