Home / 21,035.15-31,553.00-6,995.18

Finding the Fourth Proportional to 21,035.15, 31,553.00 and 6,995.18

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Solution

The fourth proportional to 21,035.15, 31,553.00 and 6,995.18 is: 10,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.15 : 31,553.00 = 6,995.18 : x
  2. Step 2: Convert to fraction form
    21,035.15/31,553.00 = 6,995.18/x
  3. Step 3: Cross multiply
    21,035.15x = 31,553.00 × 6,995.18
  4. Step 4: Simplify right side
    21,035.15x = 220,718,721.80
  5. Step 5: Solve for x
    x = 220,718,721.80/21,035.15
  6. Step 6: Final answer
    x = 10,492.85

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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.