Home / 28,910.80-43,317.60-14,087.80

Finding the Fourth Proportional to 28,910.80, 43,317.60 and 14,087.80

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Solution

The fourth proportional to 28,910.80, 43,317.60 and 14,087.80 is: 21,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.80 : 43,317.60 = 14,087.80 : x
  2. Step 2: Convert to fraction form
    28,910.80/43,317.60 = 14,087.80/x
  3. Step 3: Cross multiply
    28,910.80x = 43,317.60 × 14,087.80
  4. Step 4: Simplify right side
    28,910.80x = 610,249,685.28
  5. Step 5: Solve for x
    x = 610,249,685.28/28,910.80
  6. Step 6: Final answer
    x = 21,108.02

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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.