Home / 19,887.66-29,949.89-17,321.58

Finding the Fourth Proportional to 19,887.66, 29,949.89 and 17,321.58

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Solution

The fourth proportional to 19,887.66, 29,949.89 and 17,321.58 is: 26,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.66 : 29,949.89 = 17,321.58 : x
  2. Step 2: Convert to fraction form
    19,887.66/29,949.89 = 17,321.58/x
  3. Step 3: Cross multiply
    19,887.66x = 29,949.89 × 17,321.58
  4. Step 4: Simplify right side
    19,887.66x = 518,779,329.02
  5. Step 5: Solve for x
    x = 518,779,329.02/19,887.66
  6. Step 6: Final answer
    x = 26,085.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.