Home / 19,916.70-27,475.92-11,945.22

Finding the Fourth Proportional to 19,916.70, 27,475.92 and 11,945.22

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Solution

The fourth proportional to 19,916.70, 27,475.92 and 11,945.22 is: 16,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.70 : 27,475.92 = 11,945.22 : x
  2. Step 2: Convert to fraction form
    19,916.70/27,475.92 = 11,945.22/x
  3. Step 3: Cross multiply
    19,916.70x = 27,475.92 × 11,945.22
  4. Step 4: Simplify right side
    19,916.70x = 328,205,909.10
  5. Step 5: Solve for x
    x = 328,205,909.10/19,916.70
  6. Step 6: Final answer
    x = 16,478.93

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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.