Home / 25,513.14-35,208.90-15,443.43

Finding the Fourth Proportional to 25,513.14, 35,208.90 and 15,443.43

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Solution

The fourth proportional to 25,513.14, 35,208.90 and 15,443.43 is: 21,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,513.14 : 35,208.90 = 15,443.43 : x
  2. Step 2: Convert to fraction form
    25,513.14/35,208.90 = 15,443.43/x
  3. Step 3: Cross multiply
    25,513.14x = 35,208.90 × 15,443.43
  4. Step 4: Simplify right side
    25,513.14x = 543,745,929.27
  5. Step 5: Solve for x
    x = 543,745,929.27/25,513.14
  6. Step 6: Final answer
    x = 21,312.39

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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.