Home / 38,724.42-53,436.42-21,726.37

Finding the Fourth Proportional to 38,724.42, 53,436.42 and 21,726.37

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Solution

The fourth proportional to 38,724.42, 53,436.42 and 21,726.37 is: 29,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,724.42 : 53,436.42 = 21,726.37 : x
  2. Step 2: Convert to fraction form
    38,724.42/53,436.42 = 21,726.37/x
  3. Step 3: Cross multiply
    38,724.42x = 53,436.42 × 21,726.37
  4. Step 4: Simplify right side
    38,724.42x = 1,160,979,432.40
  5. Step 5: Solve for x
    x = 1,160,979,432.40/38,724.42
  6. Step 6: Final answer
    x = 29,980.55

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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.