Home / 39,410.94-54,386.37-21,505.49

Finding the Fourth Proportional to 39,410.94, 54,386.37 and 21,505.49

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Solution

The fourth proportional to 39,410.94, 54,386.37 and 21,505.49 is: 29,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410.94 : 54,386.37 = 21,505.49 : x
  2. Step 2: Convert to fraction form
    39,410.94/54,386.37 = 21,505.49/x
  3. Step 3: Cross multiply
    39,410.94x = 54,386.37 × 21,505.49
  4. Step 4: Simplify right side
    39,410.94x = 1,169,605,264.24
  5. Step 5: Solve for x
    x = 1,169,605,264.24/39,410.94
  6. Step 6: Final answer
    x = 29,677.17

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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.