Home / 21,056.78-31,585.10-14,462.97

Finding the Fourth Proportional to 21,056.78, 31,585.10 and 14,462.97

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Solution

The fourth proportional to 21,056.78, 31,585.10 and 14,462.97 is: 21,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.78 : 31,585.10 = 14,462.97 : x
  2. Step 2: Convert to fraction form
    21,056.78/31,585.10 = 14,462.97/x
  3. Step 3: Cross multiply
    21,056.78x = 31,585.10 × 14,462.97
  4. Step 4: Simplify right side
    21,056.78x = 456,814,281.43
  5. Step 5: Solve for x
    x = 456,814,281.43/21,056.78
  6. Step 6: Final answer
    x = 21,694.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.