Home / 21,337.16-29,438.25-13,787.94

Finding the Fourth Proportional to 21,337.16, 29,438.25 and 13,787.94

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Solution

The fourth proportional to 21,337.16, 29,438.25 and 13,787.94 is: 19,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.16 : 29,438.25 = 13,787.94 : x
  2. Step 2: Convert to fraction form
    21,337.16/29,438.25 = 13,787.94/x
  3. Step 3: Cross multiply
    21,337.16x = 29,438.25 × 13,787.94
  4. Step 4: Simplify right side
    21,337.16x = 405,892,824.71
  5. Step 5: Solve for x
    x = 405,892,824.71/21,337.16
  6. Step 6: Final answer
    x = 19,022.81

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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.