Home / 39,955.22-55,138.36-22,050.74

Finding the Fourth Proportional to 39,955.22, 55,138.36 and 22,050.74

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Solution

The fourth proportional to 39,955.22, 55,138.36 and 22,050.74 is: 30,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,955.22 : 55,138.36 = 22,050.74 : x
  2. Step 2: Convert to fraction form
    39,955.22/55,138.36 = 22,050.74/x
  3. Step 3: Cross multiply
    39,955.22x = 55,138.36 × 22,050.74
  4. Step 4: Simplify right side
    39,955.22x = 1,215,841,640.39
  5. Step 5: Solve for x
    x = 1,215,841,640.39/39,955.22
  6. Step 6: Final answer
    x = 30,430.11

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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.