Home / 20,506.07-30,759.13-5,715.39

Finding the Fourth Proportional to 20,506.07, 30,759.13 and 5,715.39

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Solution

The fourth proportional to 20,506.07, 30,759.13 and 5,715.39 is: 8,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.07 : 30,759.13 = 5,715.39 : x
  2. Step 2: Convert to fraction form
    20,506.07/30,759.13 = 5,715.39/x
  3. Step 3: Cross multiply
    20,506.07x = 30,759.13 × 5,715.39
  4. Step 4: Simplify right side
    20,506.07x = 175,800,424.01
  5. Step 5: Solve for x
    x = 175,800,424.01/20,506.07
  6. Step 6: Final answer
    x = 8,573.09

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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.