Home / 30,345.36-41,878.05-16,916.73

Finding the Fourth Proportional to 30,345.36, 41,878.05 and 16,916.73

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Solution

The fourth proportional to 30,345.36, 41,878.05 and 16,916.73 is: 23,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.36 : 41,878.05 = 16,916.73 : x
  2. Step 2: Convert to fraction form
    30,345.36/41,878.05 = 16,916.73/x
  3. Step 3: Cross multiply
    30,345.36x = 41,878.05 × 16,916.73
  4. Step 4: Simplify right side
    30,345.36x = 708,439,664.78
  5. Step 5: Solve for x
    x = 708,439,664.78/30,345.36
  6. Step 6: Final answer
    x = 23,345.90

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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.