Home / 20,831.02-31,210.08-17,343.44

Finding the Fourth Proportional to 20,831.02, 31,210.08 and 17,343.44

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Solution

The fourth proportional to 20,831.02, 31,210.08 and 17,343.44 is: 25,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831.02 : 31,210.08 = 17,343.44 : x
  2. Step 2: Convert to fraction form
    20,831.02/31,210.08 = 17,343.44/x
  3. Step 3: Cross multiply
    20,831.02x = 31,210.08 × 17,343.44
  4. Step 4: Simplify right side
    20,831.02x = 541,290,279.94
  5. Step 5: Solve for x
    x = 541,290,279.94/20,831.02
  6. Step 6: Final answer
    x = 25,984.81

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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.