Home / 35,532.20-53,298.30-20,757.80

Finding the Fourth Proportional to 35,532.20, 53,298.30 and 20,757.80

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Solution

The fourth proportional to 35,532.20, 53,298.30 and 20,757.80 is: 31,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,532.20 : 53,298.30 = 20,757.80 : x
  2. Step 2: Convert to fraction form
    35,532.20/53,298.30 = 20,757.80/x
  3. Step 3: Cross multiply
    35,532.20x = 53,298.30 × 20,757.80
  4. Step 4: Simplify right side
    35,532.20x = 1,106,355,451.74
  5. Step 5: Solve for x
    x = 1,106,355,451.74/35,532.20
  6. Step 6: Final answer
    x = 31,136.70

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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.