Home / 25,108.48-37,673.28-12,640

Finding the Fourth Proportional to 25,108.48, 37,673.28 and 12,640

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Solution

The fourth proportional to 25,108.48, 37,673.28 and 12,640 is: 18,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,108.48 : 37,673.28 = 12,640 : x
  2. Step 2: Convert to fraction form
    25,108.48/37,673.28 = 12,640/x
  3. Step 3: Cross multiply
    25,108.48x = 37,673.28 × 12,640
  4. Step 4: Simplify right side
    25,108.48x = 476,190,259.20
  5. Step 5: Solve for x
    x = 476,190,259.20/25,108.48
  6. Step 6: Final answer
    x = 18,965.32

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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.