Home / 30,916.73-42,664.87-16,769.59

Finding the Fourth Proportional to 30,916.73, 42,664.87 and 16,769.59

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Solution

The fourth proportional to 30,916.73, 42,664.87 and 16,769.59 is: 23,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.73 : 42,664.87 = 16,769.59 : x
  2. Step 2: Convert to fraction form
    30,916.73/42,664.87 = 16,769.59/x
  3. Step 3: Cross multiply
    30,916.73x = 42,664.87 × 16,769.59
  4. Step 4: Simplify right side
    30,916.73x = 715,472,377.30
  5. Step 5: Solve for x
    x = 715,472,377.30/30,916.73
  6. Step 6: Final answer
    x = 23,141.92

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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.