Home / 35,731.12-49,305.38-20,628.65

Finding the Fourth Proportional to 35,731.12, 49,305.38 and 20,628.65

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Solution

The fourth proportional to 35,731.12, 49,305.38 and 20,628.65 is: 28,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,731.12 : 49,305.38 = 20,628.65 : x
  2. Step 2: Convert to fraction form
    35,731.12/49,305.38 = 20,628.65/x
  3. Step 3: Cross multiply
    35,731.12x = 49,305.38 × 20,628.65
  4. Step 4: Simplify right side
    35,731.12x = 1,017,103,427.14
  5. Step 5: Solve for x
    x = 1,017,103,427.14/35,731.12
  6. Step 6: Final answer
    x = 28,465.48

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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.