Home / 39,378.96-59,069.25-21,959.64

Finding the Fourth Proportional to 39,378.96, 59,069.25 and 21,959.64

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Solution

The fourth proportional to 39,378.96, 59,069.25 and 21,959.64 is: 32,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.96 : 59,069.25 = 21,959.64 : x
  2. Step 2: Convert to fraction form
    39,378.96/59,069.25 = 21,959.64/x
  3. Step 3: Cross multiply
    39,378.96x = 59,069.25 × 21,959.64
  4. Step 4: Simplify right side
    39,378.96x = 1,297,139,465.07
  5. Step 5: Solve for x
    x = 1,297,139,465.07/39,378.96
  6. Step 6: Final answer
    x = 32,939.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.