Home / 35,731.37-49,305.72-20,628.90

Finding the Fourth Proportional to 35,731.37, 49,305.72 and 20,628.90

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Solution

The fourth proportional to 35,731.37, 49,305.72 and 20,628.90 is: 28,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,731.37 : 49,305.72 = 20,628.90 : x
  2. Step 2: Convert to fraction form
    35,731.37/49,305.72 = 20,628.90/x
  3. Step 3: Cross multiply
    35,731.37x = 49,305.72 × 20,628.90
  4. Step 4: Simplify right side
    35,731.37x = 1,017,122,767.31
  5. Step 5: Solve for x
    x = 1,017,122,767.31/35,731.37
  6. Step 6: Final answer
    x = 28,465.82

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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.