Home / 21,030.37-31,551.22-6,992.66

Finding the Fourth Proportional to 21,030.37, 31,551.22 and 6,992.66

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Solution

The fourth proportional to 21,030.37, 31,551.22 and 6,992.66 is: 10,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.37 : 31,551.22 = 6,992.66 : x
  2. Step 2: Convert to fraction form
    21,030.37/31,551.22 = 6,992.66/x
  3. Step 3: Cross multiply
    21,030.37x = 31,551.22 × 6,992.66
  4. Step 4: Simplify right side
    21,030.37x = 220,627,041.66
  5. Step 5: Solve for x
    x = 220,627,041.66/21,030.37
  6. Step 6: Final answer
    x = 10,490.88

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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.