Home / 28,661.52-42,941.41-11,984.79

Finding the Fourth Proportional to 28,661.52, 42,941.41 and 11,984.79

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Solution

The fourth proportional to 28,661.52, 42,941.41 and 11,984.79 is: 17,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.52 : 42,941.41 = 11,984.79 : x
  2. Step 2: Convert to fraction form
    28,661.52/42,941.41 = 11,984.79/x
  3. Step 3: Cross multiply
    28,661.52x = 42,941.41 × 11,984.79
  4. Step 4: Simplify right side
    28,661.52x = 514,643,781.15
  5. Step 5: Solve for x
    x = 514,643,781.15/28,661.52
  6. Step 6: Final answer
    x = 17,955.91

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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.