Home / 39,831.05-59,783.49-20,123.48

Finding the Fourth Proportional to 39,831.05, 59,783.49 and 20,123.48

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Solution

The fourth proportional to 39,831.05, 59,783.49 and 20,123.48 is: 30,203.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.05 : 59,783.49 = 20,123.48 : x
  2. Step 2: Convert to fraction form
    39,831.05/59,783.49 = 20,123.48/x
  3. Step 3: Cross multiply
    39,831.05x = 59,783.49 × 20,123.48
  4. Step 4: Simplify right side
    39,831.05x = 1,203,051,566.43
  5. Step 5: Solve for x
    x = 1,203,051,566.43/39,831.05
  6. Step 6: Final answer
    x = 30,203.87

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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.