Home / 29,284.80-43,916.40-12,645.60

Finding the Fourth Proportional to 29,284.80, 43,916.40 and 12,645.60

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Solution

The fourth proportional to 29,284.80, 43,916.40 and 12,645.60 is: 18,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,284.80 : 43,916.40 = 12,645.60 : x
  2. Step 2: Convert to fraction form
    29,284.80/43,916.40 = 12,645.60/x
  3. Step 3: Cross multiply
    29,284.80x = 43,916.40 × 12,645.60
  4. Step 4: Simplify right side
    29,284.80x = 555,349,227.84
  5. Step 5: Solve for x
    x = 555,349,227.84/29,284.80
  6. Step 6: Final answer
    x = 18,963.74

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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.