Home / 35,856.11-53,782.09-13,671.72

Finding the Fourth Proportional to 35,856.11, 53,782.09 and 13,671.72

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Solution

The fourth proportional to 35,856.11, 53,782.09 and 13,671.72 is: 20,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,856.11 : 53,782.09 = 13,671.72 : x
  2. Step 2: Convert to fraction form
    35,856.11/53,782.09 = 13,671.72/x
  3. Step 3: Cross multiply
    35,856.11x = 53,782.09 × 13,671.72
  4. Step 4: Simplify right side
    35,856.11x = 735,293,641.32
  5. Step 5: Solve for x
    x = 735,293,641.32/35,856.11
  6. Step 6: Final answer
    x = 20,506.79

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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.