Home / 20,693.31-31,015.66-9,576.51

Finding the Fourth Proportional to 20,693.31, 31,015.66 and 9,576.51

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Solution

The fourth proportional to 20,693.31, 31,015.66 and 9,576.51 is: 14,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.31 : 31,015.66 = 9,576.51 : x
  2. Step 2: Convert to fraction form
    20,693.31/31,015.66 = 9,576.51/x
  3. Step 3: Cross multiply
    20,693.31x = 31,015.66 × 9,576.51
  4. Step 4: Simplify right side
    20,693.31x = 297,021,830.32
  5. Step 5: Solve for x
    x = 297,021,830.32/20,693.31
  6. Step 6: Final answer
    x = 14,353.52

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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.