Home / 20,054.28-30,099.60-10,702.20

Finding the Fourth Proportional to 20,054.28, 30,099.60 and 10,702.20

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Solution

The fourth proportional to 20,054.28, 30,099.60 and 10,702.20 is: 16,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.28 : 30,099.60 = 10,702.20 : x
  2. Step 2: Convert to fraction form
    20,054.28/30,099.60 = 10,702.20/x
  3. Step 3: Cross multiply
    20,054.28x = 30,099.60 × 10,702.20
  4. Step 4: Simplify right side
    20,054.28x = 322,131,939.12
  5. Step 5: Solve for x
    x = 322,131,939.12/20,054.28
  6. Step 6: Final answer
    x = 16,063.00

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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.