Home / 21,234.76-31,858.78-16,570.68

Finding the Fourth Proportional to 21,234.76, 31,858.78 and 16,570.68

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Solution

The fourth proportional to 21,234.76, 31,858.78 and 16,570.68 is: 24,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.76 : 31,858.78 = 16,570.68 : x
  2. Step 2: Convert to fraction form
    21,234.76/31,858.78 = 16,570.68/x
  3. Step 3: Cross multiply
    21,234.76x = 31,858.78 × 16,570.68
  4. Step 4: Simplify right side
    21,234.76x = 527,921,648.57
  5. Step 5: Solve for x
    x = 527,921,648.57/21,234.76
  6. Step 6: Final answer
    x = 24,861.20

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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.