Home / 28,290.32-39,036.30-16,351.34

Finding the Fourth Proportional to 28,290.32, 39,036.30 and 16,351.34

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Solution

The fourth proportional to 28,290.32, 39,036.30 and 16,351.34 is: 22,562.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.32 : 39,036.30 = 16,351.34 : x
  2. Step 2: Convert to fraction form
    28,290.32/39,036.30 = 16,351.34/x
  3. Step 3: Cross multiply
    28,290.32x = 39,036.30 × 16,351.34
  4. Step 4: Simplify right side
    28,290.32x = 638,295,813.64
  5. Step 5: Solve for x
    x = 638,295,813.64/28,290.32
  6. Step 6: Final answer
    x = 22,562.34

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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.