Home / 28,989.59-40,006.64-16,889.27

Finding the Fourth Proportional to 28,989.59, 40,006.64 and 16,889.27

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Solution

The fourth proportional to 28,989.59, 40,006.64 and 16,889.27 is: 23,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.59 : 40,006.64 = 16,889.27 : x
  2. Step 2: Convert to fraction form
    28,989.59/40,006.64 = 16,889.27/x
  3. Step 3: Cross multiply
    28,989.59x = 40,006.64 × 16,889.27
  4. Step 4: Simplify right side
    28,989.59x = 675,682,960.32
  5. Step 5: Solve for x
    x = 675,682,960.32/28,989.59
  6. Step 6: Final answer
    x = 23,307.78

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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.