Home / 30,916.23-42,664.19-16,769.09

Finding the Fourth Proportional to 30,916.23, 42,664.19 and 16,769.09

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Solution

The fourth proportional to 30,916.23, 42,664.19 and 16,769.09 is: 23,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,916.23 : 42,664.19 = 16,769.09 : x
  2. Step 2: Convert to fraction form
    30,916.23/42,664.19 = 16,769.09/x
  3. Step 3: Cross multiply
    30,916.23x = 42,664.19 × 16,769.09
  4. Step 4: Simplify right side
    30,916.23x = 715,439,344.72
  5. Step 5: Solve for x
    x = 715,439,344.72/30,916.23
  6. Step 6: Final answer
    x = 23,141.22

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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.