Home / 37,739.12-52,078.56-20,973.20

Finding the Fourth Proportional to 37,739.12, 52,078.56 and 20,973.20

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Solution

The fourth proportional to 37,739.12, 52,078.56 and 20,973.20 is: 28,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,739.12 : 52,078.56 = 20,973.20 : x
  2. Step 2: Convert to fraction form
    37,739.12/52,078.56 = 20,973.20/x
  3. Step 3: Cross multiply
    37,739.12x = 52,078.56 × 20,973.20
  4. Step 4: Simplify right side
    37,739.12x = 1,092,254,054.59
  5. Step 5: Solve for x
    x = 1,092,254,054.59/37,739.12
  6. Step 6: Final answer
    x = 28,942.22

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1.5x scale

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.