Home / 20,112.08-30,128.02-15,708.92

Finding the Fourth Proportional to 20,112.08, 30,128.02 and 15,708.92

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Solution

The fourth proportional to 20,112.08, 30,128.02 and 15,708.92 is: 23,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.08 : 30,128.02 = 15,708.92 : x
  2. Step 2: Convert to fraction form
    20,112.08/30,128.02 = 15,708.92/x
  3. Step 3: Cross multiply
    20,112.08x = 30,128.02 × 15,708.92
  4. Step 4: Simplify right side
    20,112.08x = 473,278,466.03
  5. Step 5: Solve for x
    x = 473,278,466.03/20,112.08
  6. Step 6: Final answer
    x = 23,532.06

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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.