Home / 39,943.05-55,121.61-22,038.06

Finding the Fourth Proportional to 39,943.05, 55,121.61 and 22,038.06

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Solution

The fourth proportional to 39,943.05, 55,121.61 and 22,038.06 is: 30,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.05 : 55,121.61 = 22,038.06 : x
  2. Step 2: Convert to fraction form
    39,943.05/55,121.61 = 22,038.06/x
  3. Step 3: Cross multiply
    39,943.05x = 55,121.61 × 22,038.06
  4. Step 4: Simplify right side
    39,943.05x = 1,214,773,348.48
  5. Step 5: Solve for x
    x = 1,214,773,348.48/39,943.05
  6. Step 6: Final answer
    x = 30,412.63

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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.