Home / 39,210.04-54,101.19-22,212.78

Finding the Fourth Proportional to 39,210.04, 54,101.19 and 22,212.78

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Solution

The fourth proportional to 39,210.04, 54,101.19 and 22,212.78 is: 30,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.04 : 54,101.19 = 22,212.78 : x
  2. Step 2: Convert to fraction form
    39,210.04/54,101.19 = 22,212.78/x
  3. Step 3: Cross multiply
    39,210.04x = 54,101.19 × 22,212.78
  4. Step 4: Simplify right side
    39,210.04x = 1,201,737,831.21
  5. Step 5: Solve for x
    x = 1,201,737,831.21/39,210.04
  6. Step 6: Final answer
    x = 30,648.73

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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.