Home / 28,300.32-39,054.24-15,379.49

Finding the Fourth Proportional to 28,300.32, 39,054.24 and 15,379.49

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Solution

The fourth proportional to 28,300.32, 39,054.24 and 15,379.49 is: 21,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.32 : 39,054.24 = 15,379.49 : x
  2. Step 2: Convert to fraction form
    28,300.32/39,054.24 = 15,379.49/x
  3. Step 3: Cross multiply
    28,300.32x = 39,054.24 × 15,379.49
  4. Step 4: Simplify right side
    28,300.32x = 600,634,391.17
  5. Step 5: Solve for x
    x = 600,634,391.17/28,300.32
  6. Step 6: Final answer
    x = 21,223.59

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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.