Home / 28,847.81-39,750.84-21,282.14

Finding the Fourth Proportional to 28,847.81, 39,750.84 and 21,282.14

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Solution

The fourth proportional to 28,847.81, 39,750.84 and 21,282.14 is: 29,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.81 : 39,750.84 = 21,282.14 : x
  2. Step 2: Convert to fraction form
    28,847.81/39,750.84 = 21,282.14/x
  3. Step 3: Cross multiply
    28,847.81x = 39,750.84 × 21,282.14
  4. Step 4: Simplify right side
    28,847.81x = 845,983,041.37
  5. Step 5: Solve for x
    x = 845,983,041.37/28,847.81
  6. Step 6: Final answer
    x = 29,325.73

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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.