Home / 39,735.93-54,836.85-21,831.33

Finding the Fourth Proportional to 39,735.93, 54,836.85 and 21,831.33

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Solution

The fourth proportional to 39,735.93, 54,836.85 and 21,831.33 is: 30,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.93 : 54,836.85 = 21,831.33 : x
  2. Step 2: Convert to fraction form
    39,735.93/54,836.85 = 21,831.33/x
  3. Step 3: Cross multiply
    39,735.93x = 54,836.85 × 21,831.33
  4. Step 4: Simplify right side
    39,735.93x = 1,197,161,368.51
  5. Step 5: Solve for x
    x = 1,197,161,368.51/39,735.93
  6. Step 6: Final answer
    x = 30,127.93

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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.