Home / 39,550.65-54,579.16-21,645.29

Finding the Fourth Proportional to 39,550.65, 54,579.16 and 21,645.29

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Solution

The fourth proportional to 39,550.65, 54,579.16 and 21,645.29 is: 29,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,550.65 : 54,579.16 = 21,645.29 : x
  2. Step 2: Convert to fraction form
    39,550.65/54,579.16 = 21,645.29/x
  3. Step 3: Cross multiply
    39,550.65x = 54,579.16 × 21,645.29
  4. Step 4: Simplify right side
    39,550.65x = 1,181,381,746.16
  5. Step 5: Solve for x
    x = 1,181,381,746.16/39,550.65
  6. Step 6: Final answer
    x = 29,870.10

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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.