Home / 38,631.37-53,314.70-21,635.35

Finding the Fourth Proportional to 38,631.37, 53,314.70 and 21,635.35

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Solution

The fourth proportional to 38,631.37, 53,314.70 and 21,635.35 is: 29,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.37 : 53,314.70 = 21,635.35 : x
  2. Step 2: Convert to fraction form
    38,631.37/53,314.70 = 21,635.35/x
  3. Step 3: Cross multiply
    38,631.37x = 53,314.70 × 21,635.35
  4. Step 4: Simplify right side
    38,631.37x = 1,153,482,194.65
  5. Step 5: Solve for x
    x = 1,153,482,194.65/38,631.37
  6. Step 6: Final answer
    x = 29,858.69

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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.