Home / 18,868.32-28,302.45-5,017.32

Finding the Fourth Proportional to 18,868.32, 28,302.45 and 5,017.32

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Solution

The fourth proportional to 18,868.32, 28,302.45 and 5,017.32 is: 7,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.32 : 28,302.45 = 5,017.32 : x
  2. Step 2: Convert to fraction form
    18,868.32/28,302.45 = 5,017.32/x
  3. Step 3: Cross multiply
    18,868.32x = 28,302.45 × 5,017.32
  4. Step 4: Simplify right side
    18,868.32x = 142,002,448.43
  5. Step 5: Solve for x
    x = 142,002,448.43/18,868.32
  6. Step 6: Final answer
    x = 7,525.97

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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.