Home / 28,403.31-42,605.24-7,626.81

Finding the Fourth Proportional to 28,403.31, 42,605.24 and 7,626.81

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Solution

The fourth proportional to 28,403.31, 42,605.24 and 7,626.81 is: 11,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.31 : 42,605.24 = 7,626.81 : x
  2. Step 2: Convert to fraction form
    28,403.31/42,605.24 = 7,626.81/x
  3. Step 3: Cross multiply
    28,403.31x = 42,605.24 × 7,626.81
  4. Step 4: Simplify right side
    28,403.31x = 324,942,032.35
  5. Step 5: Solve for x
    x = 324,942,032.35/28,403.31
  6. Step 6: Final answer
    x = 11,440.29

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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.