Home / 28,917.80-43,376.70-14,877.80

Finding the Fourth Proportional to 28,917.80, 43,376.70 and 14,877.80

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Solution

The fourth proportional to 28,917.80, 43,376.70 and 14,877.80 is: 22,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.80 : 43,376.70 = 14,877.80 : x
  2. Step 2: Convert to fraction form
    28,917.80/43,376.70 = 14,877.80/x
  3. Step 3: Cross multiply
    28,917.80x = 43,376.70 × 14,877.80
  4. Step 4: Simplify right side
    28,917.80x = 645,349,867.26
  5. Step 5: Solve for x
    x = 645,349,867.26/28,917.80
  6. Step 6: Final answer
    x = 22,316.70

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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.