Home / 28,674.20-39,569.06-15,928.19

Finding the Fourth Proportional to 28,674.20, 39,569.06 and 15,928.19

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Solution

The fourth proportional to 28,674.20, 39,569.06 and 15,928.19 is: 21,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.20 : 39,569.06 = 15,928.19 : x
  2. Step 2: Convert to fraction form
    28,674.20/39,569.06 = 15,928.19/x
  3. Step 3: Cross multiply
    28,674.20x = 39,569.06 × 15,928.19
  4. Step 4: Simplify right side
    28,674.20x = 630,263,629.14
  5. Step 5: Solve for x
    x = 630,263,629.14/28,674.20
  6. Step 6: Final answer
    x = 21,980.16

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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.