Home / 35,291.36-48,705.94-20,185.40

Finding the Fourth Proportional to 35,291.36, 48,705.94 and 20,185.40

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Solution

The fourth proportional to 35,291.36, 48,705.94 and 20,185.40 is: 27,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,291.36 : 48,705.94 = 20,185.40 : x
  2. Step 2: Convert to fraction form
    35,291.36/48,705.94 = 20,185.40/x
  3. Step 3: Cross multiply
    35,291.36x = 48,705.94 × 20,185.40
  4. Step 4: Simplify right side
    35,291.36x = 983,148,881.28
  5. Step 5: Solve for x
    x = 983,148,881.28/35,291.36
  6. Step 6: Final answer
    x = 27,858.06

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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.