Home / 28,916.31-39,904.56-16,169.94

Finding the Fourth Proportional to 28,916.31, 39,904.56 and 16,169.94

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Solution

The fourth proportional to 28,916.31, 39,904.56 and 16,169.94 is: 22,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.31 : 39,904.56 = 16,169.94 : x
  2. Step 2: Convert to fraction form
    28,916.31/39,904.56 = 16,169.94/x
  3. Step 3: Cross multiply
    28,916.31x = 39,904.56 × 16,169.94
  4. Step 4: Simplify right side
    28,916.31x = 645,254,340.93
  5. Step 5: Solve for x
    x = 645,254,340.93/28,916.31
  6. Step 6: Final answer
    x = 22,314.55

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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.