Home / 34,868.86-48,131.36-20,721.53

Finding the Fourth Proportional to 34,868.86, 48,131.36 and 20,721.53

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Solution

The fourth proportional to 34,868.86, 48,131.36 and 20,721.53 is: 28,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.86 : 48,131.36 = 20,721.53 : x
  2. Step 2: Convert to fraction form
    34,868.86/48,131.36 = 20,721.53/x
  3. Step 3: Cross multiply
    34,868.86x = 48,131.36 × 20,721.53
  4. Step 4: Simplify right side
    34,868.86x = 997,355,420.18
  5. Step 5: Solve for x
    x = 997,355,420.18/34,868.86
  6. Step 6: Final answer
    x = 28,603.04

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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.