Home / 31,549.76-43,532.60-18,975.32

Finding the Fourth Proportional to 31,549.76, 43,532.60 and 18,975.32

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Solution

The fourth proportional to 31,549.76, 43,532.60 and 18,975.32 is: 26,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,549.76 : 43,532.60 = 18,975.32 : x
  2. Step 2: Convert to fraction form
    31,549.76/43,532.60 = 18,975.32/x
  3. Step 3: Cross multiply
    31,549.76x = 43,532.60 × 18,975.32
  4. Step 4: Simplify right side
    31,549.76x = 826,045,015.43
  5. Step 5: Solve for x
    x = 826,045,015.43/31,549.76
  6. Step 6: Final answer
    x = 26,182.29

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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.