Home / 38,208.11-52,724.81-21,211.36

Finding the Fourth Proportional to 38,208.11, 52,724.81 and 21,211.36

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Solution

The fourth proportional to 38,208.11, 52,724.81 and 21,211.36 is: 29,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.11 : 52,724.81 = 21,211.36 : x
  2. Step 2: Convert to fraction form
    38,208.11/52,724.81 = 21,211.36/x
  3. Step 3: Cross multiply
    38,208.11x = 52,724.81 × 21,211.36
  4. Step 4: Simplify right side
    38,208.11x = 1,118,364,847.06
  5. Step 5: Solve for x
    x = 1,118,364,847.06/38,208.11
  6. Step 6: Final answer
    x = 29,270.36

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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.