Home / 28,643.91-42,933.06-15,507.33

Finding the Fourth Proportional to 28,643.91, 42,933.06 and 15,507.33

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Solution

The fourth proportional to 28,643.91, 42,933.06 and 15,507.33 is: 23,243.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.91 : 42,933.06 = 15,507.33 : x
  2. Step 2: Convert to fraction form
    28,643.91/42,933.06 = 15,507.33/x
  3. Step 3: Cross multiply
    28,643.91x = 42,933.06 × 15,507.33
  4. Step 4: Simplify right side
    28,643.91x = 665,777,129.33
  5. Step 5: Solve for x
    x = 665,777,129.33/28,643.91
  6. Step 6: Final answer
    x = 23,243.23

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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.