Home / 39,940.14-55,117.02-22,035.28

Finding the Fourth Proportional to 39,940.14, 55,117.02 and 22,035.28

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Solution

The fourth proportional to 39,940.14, 55,117.02 and 22,035.28 is: 30,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.14 : 55,117.02 = 22,035.28 : x
  2. Step 2: Convert to fraction form
    39,940.14/55,117.02 = 22,035.28/x
  3. Step 3: Cross multiply
    39,940.14x = 55,117.02 × 22,035.28
  4. Step 4: Simplify right side
    39,940.14x = 1,214,518,968.47
  5. Step 5: Solve for x
    x = 1,214,518,968.47/39,940.14
  6. Step 6: Final answer
    x = 30,408.48

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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.