Home / 28,941.09-39,916.17-19,377.95

Finding the Fourth Proportional to 28,941.09, 39,916.17 and 19,377.95

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Solution

The fourth proportional to 28,941.09, 39,916.17 and 19,377.95 is: 26,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.09 : 39,916.17 = 19,377.95 : x
  2. Step 2: Convert to fraction form
    28,941.09/39,916.17 = 19,377.95/x
  3. Step 3: Cross multiply
    28,941.09x = 39,916.17 × 19,377.95
  4. Step 4: Simplify right side
    28,941.09x = 773,493,346.87
  5. Step 5: Solve for x
    x = 773,493,346.87/28,941.09
  6. Step 6: Final answer
    x = 26,726.48

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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.