Home / 21,423.10-32,114.98-7,379.79

Finding the Fourth Proportional to 21,423.10, 32,114.98 and 7,379.79

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Solution

The fourth proportional to 21,423.10, 32,114.98 and 7,379.79 is: 11,062.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.10 : 32,114.98 = 7,379.79 : x
  2. Step 2: Convert to fraction form
    21,423.10/32,114.98 = 7,379.79/x
  3. Step 3: Cross multiply
    21,423.10x = 32,114.98 × 7,379.79
  4. Step 4: Simplify right side
    21,423.10x = 237,001,876.54
  5. Step 5: Solve for x
    x = 237,001,876.54/21,423.10
  6. Step 6: Final answer
    x = 11,062.91

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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.