Home / 20,824.63-31,236.85-5,242.26

Finding the Fourth Proportional to 20,824.63, 31,236.85 and 5,242.26

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Solution

The fourth proportional to 20,824.63, 31,236.85 and 5,242.26 is: 7,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.63 : 31,236.85 = 5,242.26 : x
  2. Step 2: Convert to fraction form
    20,824.63/31,236.85 = 5,242.26/x
  3. Step 3: Cross multiply
    20,824.63x = 31,236.85 × 5,242.26
  4. Step 4: Simplify right side
    20,824.63x = 163,751,689.28
  5. Step 5: Solve for x
    x = 163,751,689.28/20,824.63
  6. Step 6: Final answer
    x = 7,863.37

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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.