Home / 38,208.31-52,725.10-21,211.56

Finding the Fourth Proportional to 38,208.31, 52,725.10 and 21,211.56

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Solution

The fourth proportional to 38,208.31, 52,725.10 and 21,211.56 is: 29,270.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,208.31 : 52,725.10 = 21,211.56 : x
  2. Step 2: Convert to fraction form
    38,208.31/52,725.10 = 21,211.56/x
  3. Step 3: Cross multiply
    38,208.31x = 52,725.10 × 21,211.56
  4. Step 4: Simplify right side
    38,208.31x = 1,118,381,622.16
  5. Step 5: Solve for x
    x = 1,118,381,622.16/38,208.31
  6. Step 6: Final answer
    x = 29,270.64

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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.