Home / 28,228.05-38,940.03-16,892.10

Finding the Fourth Proportional to 28,228.05, 38,940.03 and 16,892.10

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Solution

The fourth proportional to 28,228.05, 38,940.03 and 16,892.10 is: 23,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.05 : 38,940.03 = 16,892.10 : x
  2. Step 2: Convert to fraction form
    28,228.05/38,940.03 = 16,892.10/x
  3. Step 3: Cross multiply
    28,228.05x = 38,940.03 × 16,892.10
  4. Step 4: Simplify right side
    28,228.05x = 657,778,880.76
  5. Step 5: Solve for x
    x = 657,778,880.76/28,228.05
  6. Step 6: Final answer
    x = 23,302.31

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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.