Home / 34,989.78-48,271.36-20,643.91

Finding the Fourth Proportional to 34,989.78, 48,271.36 and 20,643.91

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Solution

The fourth proportional to 34,989.78, 48,271.36 and 20,643.91 is: 28,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,989.78 : 48,271.36 = 20,643.91 : x
  2. Step 2: Convert to fraction form
    34,989.78/48,271.36 = 20,643.91/x
  3. Step 3: Cross multiply
    34,989.78x = 48,271.36 × 20,643.91
  4. Step 4: Simplify right side
    34,989.78x = 996,509,792.91
  5. Step 5: Solve for x
    x = 996,509,792.91/34,989.78
  6. Step 6: Final answer
    x = 28,480.03

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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.