Home / 20,916.32-31,374.52-14,704.09

Finding the Fourth Proportional to 20,916.32, 31,374.52 and 14,704.09

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Solution

The fourth proportional to 20,916.32, 31,374.52 and 14,704.09 is: 22,056.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.32 : 31,374.52 = 14,704.09 : x
  2. Step 2: Convert to fraction form
    20,916.32/31,374.52 = 14,704.09/x
  3. Step 3: Cross multiply
    20,916.32x = 31,374.52 × 14,704.09
  4. Step 4: Simplify right side
    20,916.32x = 461,333,765.79
  5. Step 5: Solve for x
    x = 461,333,765.79/20,916.32
  6. Step 6: Final answer
    x = 22,056.16

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1.5x scale

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.