Home / 37,745.04-52,088.08-20,978

Finding the Fourth Proportional to 37,745.04, 52,088.08 and 20,978

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Solution

The fourth proportional to 37,745.04, 52,088.08 and 20,978 is: 28,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,745.04 : 52,088.08 = 20,978 : x
  2. Step 2: Convert to fraction form
    37,745.04/52,088.08 = 20,978/x
  3. Step 3: Cross multiply
    37,745.04x = 52,088.08 × 20,978
  4. Step 4: Simplify right side
    37,745.04x = 1,092,703,742.24
  5. Step 5: Solve for x
    x = 1,092,703,742.24/37,745.04
  6. Step 6: Final answer
    x = 28,949.60

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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.