Home / 28,574.98-39,438.28-16,645.38

Finding the Fourth Proportional to 28,574.98, 39,438.28 and 16,645.38

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Solution

The fourth proportional to 28,574.98, 39,438.28 and 16,645.38 is: 22,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.98 : 39,438.28 = 16,645.38 : x
  2. Step 2: Convert to fraction form
    28,574.98/39,438.28 = 16,645.38/x
  3. Step 3: Cross multiply
    28,574.98x = 39,438.28 × 16,645.38
  4. Step 4: Simplify right side
    28,574.98x = 656,465,157.15
  5. Step 5: Solve for x
    x = 656,465,157.15/28,574.98
  6. Step 6: Final answer
    x = 22,973.42

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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.