Home / 21,324.56-29,396.73-14,931

Finding the Fourth Proportional to 21,324.56, 29,396.73 and 14,931

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Solution

The fourth proportional to 21,324.56, 29,396.73 and 14,931 is: 20,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.56 : 29,396.73 = 14,931 : x
  2. Step 2: Convert to fraction form
    21,324.56/29,396.73 = 14,931/x
  3. Step 3: Cross multiply
    21,324.56x = 29,396.73 × 14,931
  4. Step 4: Simplify right side
    21,324.56x = 438,922,631.62
  5. Step 5: Solve for x
    x = 438,922,631.62/21,324.56
  6. Step 6: Final answer
    x = 20,582.97

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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.