Home / 57,831.09-86,747.24-20,384.18

Finding the Fourth Proportional to 57,831.09, 86,747.24 and 20,384.18

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Solution

The fourth proportional to 57,831.09, 86,747.24 and 20,384.18 is: 30,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,831.09 : 86,747.24 = 20,384.18 : x
  2. Step 2: Convert to fraction form
    57,831.09/86,747.24 = 20,384.18/x
  3. Step 3: Cross multiply
    57,831.09x = 86,747.24 × 20,384.18
  4. Step 4: Simplify right side
    57,831.09x = 1,768,271,297.19
  5. Step 5: Solve for x
    x = 1,768,271,297.19/57,831.09
  6. Step 6: Final answer
    x = 30,576.48

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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.