Home / 21,150.50-31,726.26-7,110.71

Finding the Fourth Proportional to 21,150.50, 31,726.26 and 7,110.71

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Solution

The fourth proportional to 21,150.50, 31,726.26 and 7,110.71 is: 10,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.50 : 31,726.26 = 7,110.71 : x
  2. Step 2: Convert to fraction form
    21,150.50/31,726.26 = 7,110.71/x
  3. Step 3: Cross multiply
    21,150.50x = 31,726.26 × 7,110.71
  4. Step 4: Simplify right side
    21,150.50x = 225,596,234.24
  5. Step 5: Solve for x
    x = 225,596,234.24/21,150.50
  6. Step 6: Final answer
    x = 10,666.24

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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.