Home / 28,945.76-43,415.71-19,645.55

Finding the Fourth Proportional to 28,945.76, 43,415.71 and 19,645.55

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Solution

The fourth proportional to 28,945.76, 43,415.71 and 19,645.55 is: 29,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.76 : 43,415.71 = 19,645.55 : x
  2. Step 2: Convert to fraction form
    28,945.76/43,415.71 = 19,645.55/x
  3. Step 3: Cross multiply
    28,945.76x = 43,415.71 × 19,645.55
  4. Step 4: Simplify right side
    28,945.76x = 852,925,235.40
  5. Step 5: Solve for x
    x = 852,925,235.40/28,945.76
  6. Step 6: Final answer
    x = 29,466.32

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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.