Home / 21,376.15-29,499.01-11,944.71

Finding the Fourth Proportional to 21,376.15, 29,499.01 and 11,944.71

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Solution

The fourth proportional to 21,376.15, 29,499.01 and 11,944.71 is: 16,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.15 : 29,499.01 = 11,944.71 : x
  2. Step 2: Convert to fraction form
    21,376.15/29,499.01 = 11,944.71/x
  3. Step 3: Cross multiply
    21,376.15x = 29,499.01 × 11,944.71
  4. Step 4: Simplify right side
    21,376.15x = 352,357,060.01
  5. Step 5: Solve for x
    x = 352,357,060.01/21,376.15
  6. Step 6: Final answer
    x = 16,483.66

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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.