Home / 38,964.93-53,770.52-21,969.02

Finding the Fourth Proportional to 38,964.93, 53,770.52 and 21,969.02

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Solution

The fourth proportional to 38,964.93, 53,770.52 and 21,969.02 is: 30,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964.93 : 53,770.52 = 21,969.02 : x
  2. Step 2: Convert to fraction form
    38,964.93/53,770.52 = 21,969.02/x
  3. Step 3: Cross multiply
    38,964.93x = 53,770.52 × 21,969.02
  4. Step 4: Simplify right side
    38,964.93x = 1,181,285,818.64
  5. Step 5: Solve for x
    x = 1,181,285,818.64/38,964.93
  6. Step 6: Final answer
    x = 30,316.64

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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.