Home / 28,945.45-43,340.10-18,925.34

Finding the Fourth Proportional to 28,945.45, 43,340.10 and 18,925.34

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Solution

The fourth proportional to 28,945.45, 43,340.10 and 18,925.34 is: 28,336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.45 : 43,340.10 = 18,925.34 : x
  2. Step 2: Convert to fraction form
    28,945.45/43,340.10 = 18,925.34/x
  3. Step 3: Cross multiply
    28,945.45x = 43,340.10 × 18,925.34
  4. Step 4: Simplify right side
    28,945.45x = 820,226,128.13
  5. Step 5: Solve for x
    x = 820,226,128.13/28,945.45
  6. Step 6: Final answer
    x = 28,336.97

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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.