Home / 39,831.12-59,783.58-20,123.55

Finding the Fourth Proportional to 39,831.12, 59,783.58 and 20,123.55

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Solution

The fourth proportional to 39,831.12, 59,783.58 and 20,123.55 is: 30,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,831.12 : 59,783.58 = 20,123.55 : x
  2. Step 2: Convert to fraction form
    39,831.12/59,783.58 = 20,123.55/x
  3. Step 3: Cross multiply
    39,831.12x = 59,783.58 × 20,123.55
  4. Step 4: Simplify right side
    39,831.12x = 1,203,057,861.31
  5. Step 5: Solve for x
    x = 1,203,057,861.31/39,831.12
  6. Step 6: Final answer
    x = 30,203.97

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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.