Home / 20,853.56-31,276.02-7,696.94

Finding the Fourth Proportional to 20,853.56, 31,276.02 and 7,696.94

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Solution

The fourth proportional to 20,853.56, 31,276.02 and 7,696.94 is: 11,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.56 : 31,276.02 = 7,696.94 : x
  2. Step 2: Convert to fraction form
    20,853.56/31,276.02 = 7,696.94/x
  3. Step 3: Cross multiply
    20,853.56x = 31,276.02 × 7,696.94
  4. Step 4: Simplify right side
    20,853.56x = 240,729,649.38
  5. Step 5: Solve for x
    x = 240,729,649.38/20,853.56
  6. Step 6: Final answer
    x = 11,543.82

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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.