Home / 35,639.40-53,470.97-11,949.28

Finding the Fourth Proportional to 35,639.40, 53,470.97 and 11,949.28

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Solution

The fourth proportional to 35,639.40, 53,470.97 and 11,949.28 is: 17,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.40 : 53,470.97 = 11,949.28 : x
  2. Step 2: Convert to fraction form
    35,639.40/53,470.97 = 11,949.28/x
  3. Step 3: Cross multiply
    35,639.40x = 53,470.97 × 11,949.28
  4. Step 4: Simplify right side
    35,639.40x = 638,939,592.40
  5. Step 5: Solve for x
    x = 638,939,592.40/35,639.40
  6. Step 6: Final answer
    x = 17,927.90

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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.