Home / 28,878.67-43,292.69-13,878.28

Finding the Fourth Proportional to 28,878.67, 43,292.69 and 13,878.28

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Solution

The fourth proportional to 28,878.67, 43,292.69 and 13,878.28 is: 20,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.67 : 43,292.69 = 13,878.28 : x
  2. Step 2: Convert to fraction form
    28,878.67/43,292.69 = 13,878.28/x
  3. Step 3: Cross multiply
    28,878.67x = 43,292.69 × 13,878.28
  4. Step 4: Simplify right side
    28,878.67x = 600,827,896.15
  5. Step 5: Solve for x
    x = 600,827,896.15/28,878.67
  6. Step 6: Final answer
    x = 20,805.25

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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.