Home / 21,500.08-29,671.44-14,317.68

Finding the Fourth Proportional to 21,500.08, 29,671.44 and 14,317.68

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Solution

The fourth proportional to 21,500.08, 29,671.44 and 14,317.68 is: 19,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.08 : 29,671.44 = 14,317.68 : x
  2. Step 2: Convert to fraction form
    21,500.08/29,671.44 = 14,317.68/x
  3. Step 3: Cross multiply
    21,500.08x = 29,671.44 × 14,317.68
  4. Step 4: Simplify right side
    21,500.08x = 424,826,183.06
  5. Step 5: Solve for x
    x = 424,826,183.06/21,500.08
  6. Step 6: Final answer
    x = 19,759.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.