Home / 39,656.64-54,727.70-21,752.40

Finding the Fourth Proportional to 39,656.64, 54,727.70 and 21,752.40

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Solution

The fourth proportional to 39,656.64, 54,727.70 and 21,752.40 is: 30,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.64 : 54,727.70 = 21,752.40 : x
  2. Step 2: Convert to fraction form
    39,656.64/54,727.70 = 21,752.40/x
  3. Step 3: Cross multiply
    39,656.64x = 54,727.70 × 21,752.40
  4. Step 4: Simplify right side
    39,656.64x = 1,190,458,712.72
  5. Step 5: Solve for x
    x = 1,190,458,712.72/39,656.64
  6. Step 6: Final answer
    x = 30,019.15

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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.