Home / 21,095.93-29,111.18-11,663.88

Finding the Fourth Proportional to 21,095.93, 29,111.18 and 11,663.88

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Solution

The fourth proportional to 21,095.93, 29,111.18 and 11,663.88 is: 16,095.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.93 : 29,111.18 = 11,663.88 : x
  2. Step 2: Convert to fraction form
    21,095.93/29,111.18 = 11,663.88/x
  3. Step 3: Cross multiply
    21,095.93x = 29,111.18 × 11,663.88
  4. Step 4: Simplify right side
    21,095.93x = 339,549,251.86
  5. Step 5: Solve for x
    x = 339,549,251.86/21,095.93
  6. Step 6: Final answer
    x = 16,095.49

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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.