Home / 31,653.37-43,661.05-20,304.90

Finding the Fourth Proportional to 31,653.37, 43,661.05 and 20,304.90

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Solution

The fourth proportional to 31,653.37, 43,661.05 and 20,304.90 is: 28,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.37 : 43,661.05 = 20,304.90 : x
  2. Step 2: Convert to fraction form
    31,653.37/43,661.05 = 20,304.90/x
  3. Step 3: Cross multiply
    31,653.37x = 43,661.05 × 20,304.90
  4. Step 4: Simplify right side
    31,653.37x = 886,533,254.15
  5. Step 5: Solve for x
    x = 886,533,254.15/31,653.37
  6. Step 6: Final answer
    x = 28,007.55

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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.