Home / 28,059.84-42,083.56-11,415.48

Finding the Fourth Proportional to 28,059.84, 42,083.56 and 11,415.48

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Solution

The fourth proportional to 28,059.84, 42,083.56 and 11,415.48 is: 17,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.84 : 42,083.56 = 11,415.48 : x
  2. Step 2: Convert to fraction form
    28,059.84/42,083.56 = 11,415.48/x
  3. Step 3: Cross multiply
    28,059.84x = 42,083.56 × 11,415.48
  4. Step 4: Simplify right side
    28,059.84x = 480,404,037.51
  5. Step 5: Solve for x
    x = 480,404,037.51/28,059.84
  6. Step 6: Final answer
    x = 17,120.70

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1.5x scale

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.