Home / 21,029.81-31,550.38-6,992.10

Finding the Fourth Proportional to 21,029.81, 31,550.38 and 6,992.10

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Solution

The fourth proportional to 21,029.81, 31,550.38 and 6,992.10 is: 10,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.81 : 31,550.38 = 6,992.10 : x
  2. Step 2: Convert to fraction form
    21,029.81/31,550.38 = 6,992.10/x
  3. Step 3: Cross multiply
    21,029.81x = 31,550.38 × 6,992.10
  4. Step 4: Simplify right side
    21,029.81x = 220,603,394.52
  5. Step 5: Solve for x
    x = 220,603,394.52/21,029.81
  6. Step 6: Final answer
    x = 10,490.04

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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.