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Finding the Fourth Proportional to 39,009.07, 53,839.80 and 22,242.07

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Solution

The fourth proportional to 39,009.07, 53,839.80 and 22,242.07 is: 30,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009.07 : 53,839.80 = 22,242.07 : x
  2. Step 2: Convert to fraction form
    39,009.07/53,839.80 = 22,242.07/x
  3. Step 3: Cross multiply
    39,009.07x = 53,839.80 × 22,242.07
  4. Step 4: Simplify right side
    39,009.07x = 1,197,508,600.39
  5. Step 5: Solve for x
    x = 1,197,508,600.39/39,009.07
  6. Step 6: Final answer
    x = 30,698.21

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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.