Home / 39,749.94-54,903.02-28,977.75

Finding the Fourth Proportional to 39,749.94, 54,903.02 and 28,977.75

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Solution

The fourth proportional to 39,749.94, 54,903.02 and 28,977.75 is: 40,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.94 : 54,903.02 = 28,977.75 : x
  2. Step 2: Convert to fraction form
    39,749.94/54,903.02 = 28,977.75/x
  3. Step 3: Cross multiply
    39,749.94x = 54,903.02 × 28,977.75
  4. Step 4: Simplify right side
    39,749.94x = 1,590,965,842.92
  5. Step 5: Solve for x
    x = 1,590,965,842.92/39,749.94
  6. Step 6: Final answer
    x = 40,024.36

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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.