Home / 39,938.45-55,114.16-22,035.15

Finding the Fourth Proportional to 39,938.45, 55,114.16 and 22,035.15

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Solution

The fourth proportional to 39,938.45, 55,114.16 and 22,035.15 is: 30,408.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.45 : 55,114.16 = 22,035.15 : x
  2. Step 2: Convert to fraction form
    39,938.45/55,114.16 = 22,035.15/x
  3. Step 3: Cross multiply
    39,938.45x = 55,114.16 × 22,035.15
  4. Step 4: Simplify right side
    39,938.45x = 1,214,448,672.55
  5. Step 5: Solve for x
    x = 1,214,448,672.55/39,938.45
  6. Step 6: Final answer
    x = 30,408.01

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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.