Home / 19,209.24-28,811.40-5,170.32

Finding the Fourth Proportional to 19,209.24, 28,811.40 and 5,170.32

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Solution

The fourth proportional to 19,209.24, 28,811.40 and 5,170.32 is: 7,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.24 : 28,811.40 = 5,170.32 : x
  2. Step 2: Convert to fraction form
    19,209.24/28,811.40 = 5,170.32/x
  3. Step 3: Cross multiply
    19,209.24x = 28,811.40 × 5,170.32
  4. Step 4: Simplify right side
    19,209.24x = 148,964,157.65
  5. Step 5: Solve for x
    x = 148,964,157.65/19,209.24
  6. Step 6: Final answer
    x = 7,754.82

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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.