Home / 39,919.12-55,086.16-22,014.08

Finding the Fourth Proportional to 39,919.12, 55,086.16 and 22,014.08

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Solution

The fourth proportional to 39,919.12, 55,086.16 and 22,014.08 is: 30,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.12 : 55,086.16 = 22,014.08 : x
  2. Step 2: Convert to fraction form
    39,919.12/55,086.16 = 22,014.08/x
  3. Step 3: Cross multiply
    39,919.12x = 55,086.16 × 22,014.08
  4. Step 4: Simplify right side
    39,919.12x = 1,212,671,133.13
  5. Step 5: Solve for x
    x = 1,212,671,133.13/39,919.12
  6. Step 6: Final answer
    x = 30,378.20

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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.