Home / 28,631.07-42,949.34-8,904.33

Finding the Fourth Proportional to 28,631.07, 42,949.34 and 8,904.33

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Solution

The fourth proportional to 28,631.07, 42,949.34 and 8,904.33 is: 13,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.07 : 42,949.34 = 8,904.33 : x
  2. Step 2: Convert to fraction form
    28,631.07/42,949.34 = 8,904.33/x
  3. Step 3: Cross multiply
    28,631.07x = 42,949.34 × 8,904.33
  4. Step 4: Simplify right side
    28,631.07x = 382,435,085.51
  5. Step 5: Solve for x
    x = 382,435,085.51/28,631.07
  6. Step 6: Final answer
    x = 13,357.35

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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.