Home / 46,273.60-69,400-21,289.68

Finding the Fourth Proportional to 46,273.60, 69,400 and 21,289.68

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Solution

The fourth proportional to 46,273.60, 69,400 and 21,289.68 is: 31,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,273.60 : 69,400 = 21,289.68 : x
  2. Step 2: Convert to fraction form
    46,273.60/69,400 = 21,289.68/x
  3. Step 3: Cross multiply
    46,273.60x = 69,400 × 21,289.68
  4. Step 4: Simplify right side
    46,273.60x = 1,477,503,792
  5. Step 5: Solve for x
    x = 1,477,503,792/46,273.60
  6. Step 6: Final answer
    x = 31,929.74

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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.