Home / 35,246.98-48,638.12-20,139.06

Finding the Fourth Proportional to 35,246.98, 48,638.12 and 20,139.06

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Solution

The fourth proportional to 35,246.98, 48,638.12 and 20,139.06 is: 27,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,246.98 : 48,638.12 = 20,139.06 : x
  2. Step 2: Convert to fraction form
    35,246.98/48,638.12 = 20,139.06/x
  3. Step 3: Cross multiply
    35,246.98x = 48,638.12 × 20,139.06
  4. Step 4: Simplify right side
    35,246.98x = 979,526,016.97
  5. Step 5: Solve for x
    x = 979,526,016.97/35,246.98
  6. Step 6: Final answer
    x = 27,790.35

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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.