Home / 38,831.60-58,259.62-13,871.09

Finding the Fourth Proportional to 38,831.60, 58,259.62 and 13,871.09

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Solution

The fourth proportional to 38,831.60, 58,259.62 and 13,871.09 is: 20,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,831.60 : 58,259.62 = 13,871.09 : x
  2. Step 2: Convert to fraction form
    38,831.60/58,259.62 = 13,871.09/x
  3. Step 3: Cross multiply
    38,831.60x = 58,259.62 × 13,871.09
  4. Step 4: Simplify right side
    38,831.60x = 808,124,324.88
  5. Step 5: Solve for x
    x = 808,124,324.88/38,831.60
  6. Step 6: Final answer
    x = 20,811.00

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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.