Home / 32,777.16-45,218.70-20,846.40

Finding the Fourth Proportional to 32,777.16, 45,218.70 and 20,846.40

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Solution

The fourth proportional to 32,777.16, 45,218.70 and 20,846.40 is: 28,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,777.16 : 45,218.70 = 20,846.40 : x
  2. Step 2: Convert to fraction form
    32,777.16/45,218.70 = 20,846.40/x
  3. Step 3: Cross multiply
    32,777.16x = 45,218.70 × 20,846.40
  4. Step 4: Simplify right side
    32,777.16x = 942,647,107.68
  5. Step 5: Solve for x
    x = 942,647,107.68/32,777.16
  6. Step 6: Final answer
    x = 28,759.27

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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.