Home / 38,386.11-52,963.56-21,619.11

Finding the Fourth Proportional to 38,386.11, 52,963.56 and 21,619.11

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Solution

The fourth proportional to 38,386.11, 52,963.56 and 21,619.11 is: 29,829.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.11 : 52,963.56 = 21,619.11 : x
  2. Step 2: Convert to fraction form
    38,386.11/52,963.56 = 21,619.11/x
  3. Step 3: Cross multiply
    38,386.11x = 52,963.56 × 21,619.11
  4. Step 4: Simplify right side
    38,386.11x = 1,145,025,029.63
  5. Step 5: Solve for x
    x = 1,145,025,029.63/38,386.11
  6. Step 6: Final answer
    x = 29,829.15

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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.