Home / 38,722.94-53,437.41-21,495.12

Finding the Fourth Proportional to 38,722.94, 53,437.41 and 21,495.12

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Solution

The fourth proportional to 38,722.94, 53,437.41 and 21,495.12 is: 29,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.94 : 53,437.41 = 21,495.12 : x
  2. Step 2: Convert to fraction form
    38,722.94/53,437.41 = 21,495.12/x
  3. Step 3: Cross multiply
    38,722.94x = 53,437.41 × 21,495.12
  4. Step 4: Simplify right side
    38,722.94x = 1,148,643,540.44
  5. Step 5: Solve for x
    x = 1,148,643,540.44/38,722.94
  6. Step 6: Final answer
    x = 29,663.13

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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.