Home / 23,291.81-34,939.70-20,550.77

Finding the Fourth Proportional to 23,291.81, 34,939.70 and 20,550.77

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Solution

The fourth proportional to 23,291.81, 34,939.70 and 20,550.77 is: 30,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,291.81 : 34,939.70 = 20,550.77 : x
  2. Step 2: Convert to fraction form
    23,291.81/34,939.70 = 20,550.77/x
  3. Step 3: Cross multiply
    23,291.81x = 34,939.70 × 20,550.77
  4. Step 4: Simplify right side
    23,291.81x = 718,037,738.57
  5. Step 5: Solve for x
    x = 718,037,738.57/23,291.81
  6. Step 6: Final answer
    x = 30,827.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.