Home / 35,036.08-48,325.80-20,878

Finding the Fourth Proportional to 35,036.08, 48,325.80 and 20,878

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Solution

The fourth proportional to 35,036.08, 48,325.80 and 20,878 is: 28,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,036.08 : 48,325.80 = 20,878 : x
  2. Step 2: Convert to fraction form
    35,036.08/48,325.80 = 20,878/x
  3. Step 3: Cross multiply
    35,036.08x = 48,325.80 × 20,878
  4. Step 4: Simplify right side
    35,036.08x = 1,008,946,052.40
  5. Step 5: Solve for x
    x = 1,008,946,052.40/35,036.08
  6. Step 6: Final answer
    x = 28,797.34

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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.