Home / 19,889.67-29,832.93-11,564.39

Finding the Fourth Proportional to 19,889.67, 29,832.93 and 11,564.39

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Solution

The fourth proportional to 19,889.67, 29,832.93 and 11,564.39 is: 17,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.67 : 29,832.93 = 11,564.39 : x
  2. Step 2: Convert to fraction form
    19,889.67/29,832.93 = 11,564.39/x
  3. Step 3: Cross multiply
    19,889.67x = 29,832.93 × 11,564.39
  4. Step 4: Simplify right side
    19,889.67x = 344,999,488.20
  5. Step 5: Solve for x
    x = 344,999,488.20/19,889.67
  6. Step 6: Final answer
    x = 17,345.66

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1.5x scale

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.