Home / 35,278.57-48,685.35-20,173.69

Finding the Fourth Proportional to 35,278.57, 48,685.35 and 20,173.69

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Solution

The fourth proportional to 35,278.57, 48,685.35 and 20,173.69 is: 27,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,278.57 : 48,685.35 = 20,173.69 : x
  2. Step 2: Convert to fraction form
    35,278.57/48,685.35 = 20,173.69/x
  3. Step 3: Cross multiply
    35,278.57x = 48,685.35 × 20,173.69
  4. Step 4: Simplify right side
    35,278.57x = 982,163,158.44
  5. Step 5: Solve for x
    x = 982,163,158.44/35,278.57
  6. Step 6: Final answer
    x = 27,840.22

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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.