Home / 21,023.93-31,534.07-6,979.38

Finding the Fourth Proportional to 21,023.93, 31,534.07 and 6,979.38

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Solution

The fourth proportional to 21,023.93, 31,534.07 and 6,979.38 is: 10,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023.93 : 31,534.07 = 6,979.38 : x
  2. Step 2: Convert to fraction form
    21,023.93/31,534.07 = 6,979.38/x
  3. Step 3: Cross multiply
    21,023.93x = 31,534.07 × 6,979.38
  4. Step 4: Simplify right side
    21,023.93x = 220,088,222.58
  5. Step 5: Solve for x
    x = 220,088,222.58/21,023.93
  6. Step 6: Final answer
    x = 10,468.46

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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.