Home / 20,956.08-31,444.60-13,056.14

Finding the Fourth Proportional to 20,956.08, 31,444.60 and 13,056.14

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Solution

The fourth proportional to 20,956.08, 31,444.60 and 13,056.14 is: 19,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956.08 : 31,444.60 = 13,056.14 : x
  2. Step 2: Convert to fraction form
    20,956.08/31,444.60 = 13,056.14/x
  3. Step 3: Cross multiply
    20,956.08x = 31,444.60 × 13,056.14
  4. Step 4: Simplify right side
    20,956.08x = 410,545,099.84
  5. Step 5: Solve for x
    x = 410,545,099.84/20,956.08
  6. Step 6: Final answer
    x = 19,590.74

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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.