Home / 20,348.37-30,533.90-10,988.19

Finding the Fourth Proportional to 20,348.37, 30,533.90 and 10,988.19

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Solution

The fourth proportional to 20,348.37, 30,533.90 and 10,988.19 is: 16,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.37 : 30,533.90 = 10,988.19 : x
  2. Step 2: Convert to fraction form
    20,348.37/30,533.90 = 10,988.19/x
  3. Step 3: Cross multiply
    20,348.37x = 30,533.90 × 10,988.19
  4. Step 4: Simplify right side
    20,348.37x = 335,512,239.70
  5. Step 5: Solve for x
    x = 335,512,239.70/20,348.37
  6. Step 6: Final answer
    x = 16,488.41

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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.