Home / 31,975.42-44,129.37-20,341.70

Finding the Fourth Proportional to 31,975.42, 44,129.37 and 20,341.70

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Solution

The fourth proportional to 31,975.42, 44,129.37 and 20,341.70 is: 28,073.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.42 : 44,129.37 = 20,341.70 : x
  2. Step 2: Convert to fraction form
    31,975.42/44,129.37 = 20,341.70/x
  3. Step 3: Cross multiply
    31,975.42x = 44,129.37 × 20,341.70
  4. Step 4: Simplify right side
    31,975.42x = 897,666,304.02
  5. Step 5: Solve for x
    x = 897,666,304.02/31,975.42
  6. Step 6: Final answer
    x = 28,073.64

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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.