Home / 21,051.54-31,573.17-9,956.63

Finding the Fourth Proportional to 21,051.54, 31,573.17 and 9,956.63

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Solution

The fourth proportional to 21,051.54, 31,573.17 and 9,956.63 is: 14,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.54 : 31,573.17 = 9,956.63 : x
  2. Step 2: Convert to fraction form
    21,051.54/31,573.17 = 9,956.63/x
  3. Step 3: Cross multiply
    21,051.54x = 31,573.17 × 9,956.63
  4. Step 4: Simplify right side
    21,051.54x = 314,362,213.75
  5. Step 5: Solve for x
    x = 314,362,213.75/21,051.54
  6. Step 6: Final answer
    x = 14,932.98

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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.