Home / 21,095.26-29,111.32-11,663.75

Finding the Fourth Proportional to 21,095.26, 29,111.32 and 11,663.75

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Solution

The fourth proportional to 21,095.26, 29,111.32 and 11,663.75 is: 16,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.26 : 29,111.32 = 11,663.75 : x
  2. Step 2: Convert to fraction form
    21,095.26/29,111.32 = 11,663.75/x
  3. Step 3: Cross multiply
    21,095.26x = 29,111.32 × 11,663.75
  4. Step 4: Simplify right side
    21,095.26x = 339,547,158.65
  5. Step 5: Solve for x
    x = 339,547,158.65/21,095.26
  6. Step 6: Final answer
    x = 16,095.90

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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.