Home / 20,833.84-31,254.36-9,148.24

Finding the Fourth Proportional to 20,833.84, 31,254.36 and 9,148.24

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Solution

The fourth proportional to 20,833.84, 31,254.36 and 9,148.24 is: 13,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.84 : 31,254.36 = 9,148.24 : x
  2. Step 2: Convert to fraction form
    20,833.84/31,254.36 = 9,148.24/x
  3. Step 3: Cross multiply
    20,833.84x = 31,254.36 × 9,148.24
  4. Step 4: Simplify right side
    20,833.84x = 285,922,386.33
  5. Step 5: Solve for x
    x = 285,922,386.33/20,833.84
  6. Step 6: Final answer
    x = 13,723.94

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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.