Home / 20,988.50-31,473.27-6,192.23

Finding the Fourth Proportional to 20,988.50, 31,473.27 and 6,192.23

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Solution

The fourth proportional to 20,988.50, 31,473.27 and 6,192.23 is: 9,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,988.50 : 31,473.27 = 6,192.23 : x
  2. Step 2: Convert to fraction form
    20,988.50/31,473.27 = 6,192.23/x
  3. Step 3: Cross multiply
    20,988.50x = 31,473.27 × 6,192.23
  4. Step 4: Simplify right side
    20,988.50x = 194,889,569.33
  5. Step 5: Solve for x
    x = 194,889,569.33/20,988.50
  6. Step 6: Final answer
    x = 9,285.54

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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.