Home / 42,809.63-64,243.61-15,107.63

Finding the Fourth Proportional to 42,809.63, 64,243.61 and 15,107.63

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Solution

The fourth proportional to 42,809.63, 64,243.61 and 15,107.63 is: 22,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,809.63 : 64,243.61 = 15,107.63 : x
  2. Step 2: Convert to fraction form
    42,809.63/64,243.61 = 15,107.63/x
  3. Step 3: Cross multiply
    42,809.63x = 64,243.61 × 15,107.63
  4. Step 4: Simplify right side
    42,809.63x = 970,568,292.99
  5. Step 5: Solve for x
    x = 970,568,292.99/42,809.63
  6. Step 6: Final answer
    x = 22,671.73

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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.