Home / 39,883.14-55,036.26-21,977.15

Finding the Fourth Proportional to 39,883.14, 55,036.26 and 21,977.15

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Solution

The fourth proportional to 39,883.14, 55,036.26 and 21,977.15 is: 30,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,883.14 : 55,036.26 = 21,977.15 : x
  2. Step 2: Convert to fraction form
    39,883.14/55,036.26 = 21,977.15/x
  3. Step 3: Cross multiply
    39,883.14x = 55,036.26 × 21,977.15
  4. Step 4: Simplify right side
    39,883.14x = 1,209,539,866.28
  5. Step 5: Solve for x
    x = 1,209,539,866.28/39,883.14
  6. Step 6: Final answer
    x = 30,327.10

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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.