Home / 39,938.76-55,087.02-28,004.76

Finding the Fourth Proportional to 39,938.76, 55,087.02 and 28,004.76

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Solution

The fourth proportional to 39,938.76, 55,087.02 and 28,004.76 is: 38,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.76 : 55,087.02 = 28,004.76 : x
  2. Step 2: Convert to fraction form
    39,938.76/55,087.02 = 28,004.76/x
  3. Step 3: Cross multiply
    39,938.76x = 55,087.02 × 28,004.76
  4. Step 4: Simplify right side
    39,938.76x = 1,542,698,774.22
  5. Step 5: Solve for x
    x = 1,542,698,774.22/39,938.76
  6. Step 6: Final answer
    x = 38,626.61

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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.