Home / 38,723.50-53,437.39-21,726.33

Finding the Fourth Proportional to 38,723.50, 53,437.39 and 21,726.33

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Solution

The fourth proportional to 38,723.50, 53,437.39 and 21,726.33 is: 29,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,723.50 : 53,437.39 = 21,726.33 : x
  2. Step 2: Convert to fraction form
    38,723.50/53,437.39 = 21,726.33/x
  3. Step 3: Cross multiply
    38,723.50x = 53,437.39 × 21,726.33
  4. Step 4: Simplify right side
    38,723.50x = 1,160,998,369.48
  5. Step 5: Solve for x
    x = 1,160,998,369.48/38,723.50
  6. Step 6: Final answer
    x = 29,981.75

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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.