Home / 28,941.28-39,916.43-19,378.13

Finding the Fourth Proportional to 28,941.28, 39,916.43 and 19,378.13

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Solution

The fourth proportional to 28,941.28, 39,916.43 and 19,378.13 is: 26,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.28 : 39,916.43 = 19,378.13 : x
  2. Step 2: Convert to fraction form
    28,941.28/39,916.43 = 19,378.13/x
  3. Step 3: Cross multiply
    28,941.28x = 39,916.43 × 19,378.13
  4. Step 4: Simplify right side
    28,941.28x = 773,505,545.87
  5. Step 5: Solve for x
    x = 773,505,545.87/28,941.28
  6. Step 6: Final answer
    x = 26,726.72

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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.