Home / 39,980.08-55,173.36-22,076.21

Finding the Fourth Proportional to 39,980.08, 55,173.36 and 22,076.21

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Solution

The fourth proportional to 39,980.08, 55,173.36 and 22,076.21 is: 30,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.08 : 55,173.36 = 22,076.21 : x
  2. Step 2: Convert to fraction form
    39,980.08/55,173.36 = 22,076.21/x
  3. Step 3: Cross multiply
    39,980.08x = 55,173.36 × 22,076.21
  4. Step 4: Simplify right side
    39,980.08x = 1,218,018,405.90
  5. Step 5: Solve for x
    x = 1,218,018,405.90/39,980.08
  6. Step 6: Final answer
    x = 30,465.64

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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.