Home / 39,077.82-53,927.32-21,173.31

Finding the Fourth Proportional to 39,077.82, 53,927.32 and 21,173.31

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Solution

The fourth proportional to 39,077.82, 53,927.32 and 21,173.31 is: 29,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,077.82 : 53,927.32 = 21,173.31 : x
  2. Step 2: Convert to fraction form
    39,077.82/53,927.32 = 21,173.31/x
  3. Step 3: Cross multiply
    39,077.82x = 53,927.32 × 21,173.31
  4. Step 4: Simplify right side
    39,077.82x = 1,141,820,025.11
  5. Step 5: Solve for x
    x = 1,141,820,025.11/39,077.82
  6. Step 6: Final answer
    x = 29,219.13

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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.