Home / 21,063.60-31,622.94-14,088.42

Finding the Fourth Proportional to 21,063.60, 31,622.94 and 14,088.42

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Solution

The fourth proportional to 21,063.60, 31,622.94 and 14,088.42 is: 21,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.60 : 31,622.94 = 14,088.42 : x
  2. Step 2: Convert to fraction form
    21,063.60/31,622.94 = 14,088.42/x
  3. Step 3: Cross multiply
    21,063.60x = 31,622.94 × 14,088.42
  4. Step 4: Simplify right side
    21,063.60x = 445,517,260.35
  5. Step 5: Solve for x
    x = 445,517,260.35/21,063.60
  6. Step 6: Final answer
    x = 21,151.05

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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.