Home / 39,135.07-53,985.71-27,809.14

Finding the Fourth Proportional to 39,135.07, 53,985.71 and 27,809.14

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Solution

The fourth proportional to 39,135.07, 53,985.71 and 27,809.14 is: 38,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.07 : 53,985.71 = 27,809.14 : x
  2. Step 2: Convert to fraction form
    39,135.07/53,985.71 = 27,809.14/x
  3. Step 3: Cross multiply
    39,135.07x = 53,985.71 × 27,809.14
  4. Step 4: Simplify right side
    39,135.07x = 1,501,296,046.74
  5. Step 5: Solve for x
    x = 1,501,296,046.74/39,135.07
  6. Step 6: Final answer
    x = 38,361.91

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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.