Home / 28,916.94-39,905.67-16,984.09

Finding the Fourth Proportional to 28,916.94, 39,905.67 and 16,984.09

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Solution

The fourth proportional to 28,916.94, 39,905.67 and 16,984.09 is: 23,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.94 : 39,905.67 = 16,984.09 : x
  2. Step 2: Convert to fraction form
    28,916.94/39,905.67 = 16,984.09/x
  3. Step 3: Cross multiply
    28,916.94x = 39,905.67 × 16,984.09
  4. Step 4: Simplify right side
    28,916.94x = 677,761,490.79
  5. Step 5: Solve for x
    x = 677,761,490.79/28,916.94
  6. Step 6: Final answer
    x = 23,438.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.