Home / 20,353.05-30,533.94-6,312.78

Finding the Fourth Proportional to 20,353.05, 30,533.94 and 6,312.78

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Solution

The fourth proportional to 20,353.05, 30,533.94 and 6,312.78 is: 9,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,353.05 : 30,533.94 = 6,312.78 : x
  2. Step 2: Convert to fraction form
    20,353.05/30,533.94 = 6,312.78/x
  3. Step 3: Cross multiply
    20,353.05x = 30,533.94 × 6,312.78
  4. Step 4: Simplify right side
    20,353.05x = 192,754,045.75
  5. Step 5: Solve for x
    x = 192,754,045.75/20,353.05
  6. Step 6: Final answer
    x = 9,470.52

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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.