Home / 39,811.36-54,937.50-21,903.52

Finding the Fourth Proportional to 39,811.36, 54,937.50 and 21,903.52

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Solution

The fourth proportional to 39,811.36, 54,937.50 and 21,903.52 is: 30,225.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.36 : 54,937.50 = 21,903.52 : x
  2. Step 2: Convert to fraction form
    39,811.36/54,937.50 = 21,903.52/x
  3. Step 3: Cross multiply
    39,811.36x = 54,937.50 × 21,903.52
  4. Step 4: Simplify right side
    39,811.36x = 1,203,324,630
  5. Step 5: Solve for x
    x = 1,203,324,630/39,811.36
  6. Step 6: Final answer
    x = 30,225.66

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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.