Home / 35,623.45-49,159.47-20,515.78

Finding the Fourth Proportional to 35,623.45, 49,159.47 and 20,515.78

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Solution

The fourth proportional to 35,623.45, 49,159.47 and 20,515.78 is: 28,311.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,623.45 : 49,159.47 = 20,515.78 : x
  2. Step 2: Convert to fraction form
    35,623.45/49,159.47 = 20,515.78/x
  3. Step 3: Cross multiply
    35,623.45x = 49,159.47 × 20,515.78
  4. Step 4: Simplify right side
    35,623.45x = 1,008,544,871.44
  5. Step 5: Solve for x
    x = 1,008,544,871.44/35,623.45
  6. Step 6: Final answer
    x = 28,311.26

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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.