Home / 20,892.02-28,831.02-11,939.50

Finding the Fourth Proportional to 20,892.02, 28,831.02 and 11,939.50

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Solution

The fourth proportional to 20,892.02, 28,831.02 and 11,939.50 is: 16,476.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.02 : 28,831.02 = 11,939.50 : x
  2. Step 2: Convert to fraction form
    20,892.02/28,831.02 = 11,939.50/x
  3. Step 3: Cross multiply
    20,892.02x = 28,831.02 × 11,939.50
  4. Step 4: Simplify right side
    20,892.02x = 344,227,819.13
  5. Step 5: Solve for x
    x = 344,227,819.13/20,892.02
  6. Step 6: Final answer
    x = 16,476.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.