Home / 20,555.07-30,832.35-6,515.07

Finding the Fourth Proportional to 20,555.07, 30,832.35 and 6,515.07

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Solution

The fourth proportional to 20,555.07, 30,832.35 and 6,515.07 is: 9,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.07 : 30,832.35 = 6,515.07 : x
  2. Step 2: Convert to fraction form
    20,555.07/30,832.35 = 6,515.07/x
  3. Step 3: Cross multiply
    20,555.07x = 30,832.35 × 6,515.07
  4. Step 4: Simplify right side
    20,555.07x = 200,874,918.51
  5. Step 5: Solve for x
    x = 200,874,918.51/20,555.07
  6. Step 6: Final answer
    x = 9,772.52

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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.