Home / 39,810.57-54,937.22-21,903.90

Finding the Fourth Proportional to 39,810.57, 54,937.22 and 21,903.90

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Solution

The fourth proportional to 39,810.57, 54,937.22 and 21,903.90 is: 30,226.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.57 : 54,937.22 = 21,903.90 : x
  2. Step 2: Convert to fraction form
    39,810.57/54,937.22 = 21,903.90/x
  3. Step 3: Cross multiply
    39,810.57x = 54,937.22 × 21,903.90
  4. Step 4: Simplify right side
    39,810.57x = 1,203,339,263.64
  5. Step 5: Solve for x
    x = 1,203,339,263.64/39,810.57
  6. Step 6: Final answer
    x = 30,226.63

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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.