Home / 28,912.36-39,899.66-16,337.40

Finding the Fourth Proportional to 28,912.36, 39,899.66 and 16,337.40

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Solution

The fourth proportional to 28,912.36, 39,899.66 and 16,337.40 is: 22,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.36 : 39,899.66 = 16,337.40 : x
  2. Step 2: Convert to fraction form
    28,912.36/39,899.66 = 16,337.40/x
  3. Step 3: Cross multiply
    28,912.36x = 39,899.66 × 16,337.40
  4. Step 4: Simplify right side
    28,912.36x = 651,856,705.28
  5. Step 5: Solve for x
    x = 651,856,705.28/28,912.36
  6. Step 6: Final answer
    x = 22,545.95

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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.