Home / 20,515.88-30,774.47-6,476.04

Finding the Fourth Proportional to 20,515.88, 30,774.47 and 6,476.04

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Solution

The fourth proportional to 20,515.88, 30,774.47 and 6,476.04 is: 9,714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.88 : 30,774.47 = 6,476.04 : x
  2. Step 2: Convert to fraction form
    20,515.88/30,774.47 = 6,476.04/x
  3. Step 3: Cross multiply
    20,515.88x = 30,774.47 × 6,476.04
  4. Step 4: Simplify right side
    20,515.88x = 199,296,666.32
  5. Step 5: Solve for x
    x = 199,296,666.32/20,515.88
  6. Step 6: Final answer
    x = 9,714.26

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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.