Home / 39,831.09-59,783.49-20,123.43

Finding the Fourth Proportional to 39,831.09, 59,783.49 and 20,123.43

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Solution

The fourth proportional to 39,831.09, 59,783.49 and 20,123.43 is: 30,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.09 : 59,783.49 = 20,123.43 : x
  2. Step 2: Convert to fraction form
    39,831.09/59,783.49 = 20,123.43/x
  3. Step 3: Cross multiply
    39,831.09x = 59,783.49 × 20,123.43
  4. Step 4: Simplify right side
    39,831.09x = 1,203,048,876.17
  5. Step 5: Solve for x
    x = 1,203,048,876.17/39,831.09
  6. Step 6: Final answer
    x = 30,203.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.