Home / 28,757.23-39,703.16-22,030.38

Finding the Fourth Proportional to 28,757.23, 39,703.16 and 22,030.38

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Solution

The fourth proportional to 28,757.23, 39,703.16 and 22,030.38 is: 30,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.23 : 39,703.16 = 22,030.38 : x
  2. Step 2: Convert to fraction form
    28,757.23/39,703.16 = 22,030.38/x
  3. Step 3: Cross multiply
    28,757.23x = 39,703.16 × 22,030.38
  4. Step 4: Simplify right side
    28,757.23x = 874,675,757.08
  5. Step 5: Solve for x
    x = 874,675,757.08/28,757.23
  6. Step 6: Final answer
    x = 30,415.86

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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.