Home / 20,294.29-28,007.40-11,342.44

Finding the Fourth Proportional to 20,294.29, 28,007.40 and 11,342.44

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Solution

The fourth proportional to 20,294.29, 28,007.40 and 11,342.44 is: 15,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.29 : 28,007.40 = 11,342.44 : x
  2. Step 2: Convert to fraction form
    20,294.29/28,007.40 = 11,342.44/x
  3. Step 3: Cross multiply
    20,294.29x = 28,007.40 × 11,342.44
  4. Step 4: Simplify right side
    20,294.29x = 317,672,254.06
  5. Step 5: Solve for x
    x = 317,672,254.06/20,294.29
  6. Step 6: Final answer
    x = 15,653.28

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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.