Home / 28,629.64-39,463.20-22,570

Finding the Fourth Proportional to 28,629.64, 39,463.20 and 22,570

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Solution

The fourth proportional to 28,629.64, 39,463.20 and 22,570 is: 31,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.64 : 39,463.20 = 22,570 : x
  2. Step 2: Convert to fraction form
    28,629.64/39,463.20 = 22,570/x
  3. Step 3: Cross multiply
    28,629.64x = 39,463.20 × 22,570
  4. Step 4: Simplify right side
    28,629.64x = 890,684,424.00
  5. Step 5: Solve for x
    x = 890,684,424.00/28,629.64
  6. Step 6: Final answer
    x = 31,110.57

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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.