Home / 28,389.66-39,169.06-16,450.69

Finding the Fourth Proportional to 28,389.66, 39,169.06 and 16,450.69

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Solution

The fourth proportional to 28,389.66, 39,169.06 and 16,450.69 is: 22,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.66 : 39,169.06 = 16,450.69 : x
  2. Step 2: Convert to fraction form
    28,389.66/39,169.06 = 16,450.69/x
  3. Step 3: Cross multiply
    28,389.66x = 39,169.06 × 16,450.69
  4. Step 4: Simplify right side
    28,389.66x = 644,357,883.48
  5. Step 5: Solve for x
    x = 644,357,883.48/28,389.66
  6. Step 6: Final answer
    x = 22,696.92

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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.