Home / 28,903.87-39,889.29-16,329.43

Finding the Fourth Proportional to 28,903.87, 39,889.29 and 16,329.43

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Solution

The fourth proportional to 28,903.87, 39,889.29 and 16,329.43 is: 22,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.87 : 39,889.29 = 16,329.43 : x
  2. Step 2: Convert to fraction form
    28,903.87/39,889.29 = 16,329.43/x
  3. Step 3: Cross multiply
    28,903.87x = 39,889.29 × 16,329.43
  4. Step 4: Simplify right side
    28,903.87x = 651,369,368.80
  5. Step 5: Solve for x
    x = 651,369,368.80/28,903.87
  6. Step 6: Final answer
    x = 22,535.71

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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.