Home / 35,986.68-49,659.48-20,878.16

Finding the Fourth Proportional to 35,986.68, 49,659.48 and 20,878.16

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Solution

The fourth proportional to 35,986.68, 49,659.48 and 20,878.16 is: 28,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,986.68 : 49,659.48 = 20,878.16 : x
  2. Step 2: Convert to fraction form
    35,986.68/49,659.48 = 20,878.16/x
  3. Step 3: Cross multiply
    35,986.68x = 49,659.48 × 20,878.16
  4. Step 4: Simplify right side
    35,986.68x = 1,036,798,320.66
  5. Step 5: Solve for x
    x = 1,036,798,320.66/35,986.68
  6. Step 6: Final answer
    x = 28,810.61

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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.