Home / 35,840.37-53,675.06-20,815.68

Finding the Fourth Proportional to 35,840.37, 53,675.06 and 20,815.68

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Solution

The fourth proportional to 35,840.37, 53,675.06 and 20,815.68 is: 31,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,840.37 : 53,675.06 = 20,815.68 : x
  2. Step 2: Convert to fraction form
    35,840.37/53,675.06 = 20,815.68/x
  3. Step 3: Cross multiply
    35,840.37x = 53,675.06 × 20,815.68
  4. Step 4: Simplify right side
    35,840.37x = 1,117,282,970.14
  5. Step 5: Solve for x
    x = 1,117,282,970.14/35,840.37
  6. Step 6: Final answer
    x = 31,173.86

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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.