Home / 39,128.93-53,997.93-22,132.81

Finding the Fourth Proportional to 39,128.93, 53,997.93 and 22,132.81

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Solution

The fourth proportional to 39,128.93, 53,997.93 and 22,132.81 is: 30,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.93 : 53,997.93 = 22,132.81 : x
  2. Step 2: Convert to fraction form
    39,128.93/53,997.93 = 22,132.81/x
  3. Step 3: Cross multiply
    39,128.93x = 53,997.93 × 22,132.81
  4. Step 4: Simplify right side
    39,128.93x = 1,195,125,869.49
  5. Step 5: Solve for x
    x = 1,195,125,869.49/39,128.93
  6. Step 6: Final answer
    x = 30,543.28

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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.