Home / 20,864.48-31,296.72-5,283.32

Finding the Fourth Proportional to 20,864.48, 31,296.72 and 5,283.32

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Solution

The fourth proportional to 20,864.48, 31,296.72 and 5,283.32 is: 7,924.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864.48 : 31,296.72 = 5,283.32 : x
  2. Step 2: Convert to fraction form
    20,864.48/31,296.72 = 5,283.32/x
  3. Step 3: Cross multiply
    20,864.48x = 31,296.72 × 5,283.32
  4. Step 4: Simplify right side
    20,864.48x = 165,350,586.71
  5. Step 5: Solve for x
    x = 165,350,586.71/20,864.48
  6. Step 6: Final answer
    x = 7,924.98

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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.