Home / 25,270.78-37,895.16-13,421.96

Finding the Fourth Proportional to 25,270.78, 37,895.16 and 13,421.96

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Solution

The fourth proportional to 25,270.78, 37,895.16 and 13,421.96 is: 20,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,270.78 : 37,895.16 = 13,421.96 : x
  2. Step 2: Convert to fraction form
    25,270.78/37,895.16 = 13,421.96/x
  3. Step 3: Cross multiply
    25,270.78x = 37,895.16 × 13,421.96
  4. Step 4: Simplify right side
    25,270.78x = 508,627,321.71
  5. Step 5: Solve for x
    x = 508,627,321.71/25,270.78
  6. Step 6: Final answer
    x = 20,127.09

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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.