Home / 20,852.02-31,285.23-13,051.54

Finding the Fourth Proportional to 20,852.02, 31,285.23 and 13,051.54

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Solution

The fourth proportional to 20,852.02, 31,285.23 and 13,051.54 is: 19,581.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.02 : 31,285.23 = 13,051.54 : x
  2. Step 2: Convert to fraction form
    20,852.02/31,285.23 = 13,051.54/x
  3. Step 3: Cross multiply
    20,852.02x = 31,285.23 × 13,051.54
  4. Step 4: Simplify right side
    20,852.02x = 408,320,430.75
  5. Step 5: Solve for x
    x = 408,320,430.75/20,852.02
  6. Step 6: Final answer
    x = 19,581.82

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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.