Home / 39,612.22-54,664.74-21,707.38

Finding the Fourth Proportional to 39,612.22, 54,664.74 and 21,707.38

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Solution

The fourth proportional to 39,612.22, 54,664.74 and 21,707.38 is: 29,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,612.22 : 54,664.74 = 21,707.38 : x
  2. Step 2: Convert to fraction form
    39,612.22/54,664.74 = 21,707.38/x
  3. Step 3: Cross multiply
    39,612.22x = 54,664.74 × 21,707.38
  4. Step 4: Simplify right side
    39,612.22x = 1,186,628,283.78
  5. Step 5: Solve for x
    x = 1,186,628,283.78/39,612.22
  6. Step 6: Final answer
    x = 29,956.12

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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.