Home / 28,880.10-43,301.52-18,989.46

Finding the Fourth Proportional to 28,880.10, 43,301.52 and 18,989.46

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Solution

The fourth proportional to 28,880.10, 43,301.52 and 18,989.46 is: 28,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.10 : 43,301.52 = 18,989.46 : x
  2. Step 2: Convert to fraction form
    28,880.10/43,301.52 = 18,989.46/x
  3. Step 3: Cross multiply
    28,880.10x = 43,301.52 × 18,989.46
  4. Step 4: Simplify right side
    28,880.10x = 822,272,481.98
  5. Step 5: Solve for x
    x = 822,272,481.98/28,880.10
  6. Step 6: Final answer
    x = 28,471.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.