Home / 21,006.08-31,566.99-11,152.74

Finding the Fourth Proportional to 21,006.08, 31,566.99 and 11,152.74

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Solution

The fourth proportional to 21,006.08, 31,566.99 and 11,152.74 is: 16,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006.08 : 31,566.99 = 11,152.74 : x
  2. Step 2: Convert to fraction form
    21,006.08/31,566.99 = 11,152.74/x
  3. Step 3: Cross multiply
    21,006.08x = 31,566.99 × 11,152.74
  4. Step 4: Simplify right side
    21,006.08x = 352,058,432.05
  5. Step 5: Solve for x
    x = 352,058,432.05/21,006.08
  6. Step 6: Final answer
    x = 16,759.83

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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.