Home / 20,506.13-30,758.64-5,714.45

Finding the Fourth Proportional to 20,506.13, 30,758.64 and 5,714.45

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Solution

The fourth proportional to 20,506.13, 30,758.64 and 5,714.45 is: 8,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.13 : 30,758.64 = 5,714.45 : x
  2. Step 2: Convert to fraction form
    20,506.13/30,758.64 = 5,714.45/x
  3. Step 3: Cross multiply
    20,506.13x = 30,758.64 × 5,714.45
  4. Step 4: Simplify right side
    20,506.13x = 175,768,710.35
  5. Step 5: Solve for x
    x = 175,768,710.35/20,506.13
  6. Step 6: Final answer
    x = 8,571.52

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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.