Home / 38,723.42-53,435.04-21,725.37

Finding the Fourth Proportional to 38,723.42, 53,435.04 and 21,725.37

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Solution

The fourth proportional to 38,723.42, 53,435.04 and 21,725.37 is: 29,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,723.42 : 53,435.04 = 21,725.37 : x
  2. Step 2: Convert to fraction form
    38,723.42/53,435.04 = 21,725.37/x
  3. Step 3: Cross multiply
    38,723.42x = 53,435.04 × 21,725.37
  4. Step 4: Simplify right side
    38,723.42x = 1,160,896,014.96
  5. Step 5: Solve for x
    x = 1,160,896,014.96/38,723.42
  6. Step 6: Final answer
    x = 29,979.17

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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.