Home / 39,708.92-54,798.46-21,559.67

Finding the Fourth Proportional to 39,708.92, 54,798.46 and 21,559.67

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Solution

The fourth proportional to 39,708.92, 54,798.46 and 21,559.67 is: 29,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,708.92 : 54,798.46 = 21,559.67 : x
  2. Step 2: Convert to fraction form
    39,708.92/54,798.46 = 21,559.67/x
  3. Step 3: Cross multiply
    39,708.92x = 54,798.46 × 21,559.67
  4. Step 4: Simplify right side
    39,708.92x = 1,181,436,591.71
  5. Step 5: Solve for x
    x = 1,181,436,591.71/39,708.92
  6. Step 6: Final answer
    x = 29,752.43

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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.