Home / 36,455.78-50,305.38-20,543.06

Finding the Fourth Proportional to 36,455.78, 50,305.38 and 20,543.06

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Solution

The fourth proportional to 36,455.78, 50,305.38 and 20,543.06 is: 28,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,455.78 : 50,305.38 = 20,543.06 : x
  2. Step 2: Convert to fraction form
    36,455.78/50,305.38 = 20,543.06/x
  3. Step 3: Cross multiply
    36,455.78x = 50,305.38 × 20,543.06
  4. Step 4: Simplify right side
    36,455.78x = 1,033,426,439.66
  5. Step 5: Solve for x
    x = 1,033,426,439.66/36,455.78
  6. Step 6: Final answer
    x = 28,347.40

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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.