Home / 20,594.88-28,420.62-11,642.06

Finding the Fourth Proportional to 20,594.88, 28,420.62 and 11,642.06

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Solution

The fourth proportional to 20,594.88, 28,420.62 and 11,642.06 is: 16,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.88 : 28,420.62 = 11,642.06 : x
  2. Step 2: Convert to fraction form
    20,594.88/28,420.62 = 11,642.06/x
  3. Step 3: Cross multiply
    20,594.88x = 28,420.62 × 11,642.06
  4. Step 4: Simplify right side
    20,594.88x = 330,874,505.07
  5. Step 5: Solve for x
    x = 330,874,505.07/20,594.88
  6. Step 6: Final answer
    x = 16,065.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.