Home / 20,924.22-31,389.06-7,774.89

Finding the Fourth Proportional to 20,924.22, 31,389.06 and 7,774.89

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Solution

The fourth proportional to 20,924.22, 31,389.06 and 7,774.89 is: 11,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.22 : 31,389.06 = 7,774.89 : x
  2. Step 2: Convert to fraction form
    20,924.22/31,389.06 = 7,774.89/x
  3. Step 3: Cross multiply
    20,924.22x = 31,389.06 × 7,774.89
  4. Step 4: Simplify right side
    20,924.22x = 244,046,488.70
  5. Step 5: Solve for x
    x = 244,046,488.70/20,924.22
  6. Step 6: Final answer
    x = 11,663.35

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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.