Home / 19,245.40-28,868.10-5,392.60

Finding the Fourth Proportional to 19,245.40, 28,868.10 and 5,392.60

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Solution

The fourth proportional to 19,245.40, 28,868.10 and 5,392.60 is: 8,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.40 : 28,868.10 = 5,392.60 : x
  2. Step 2: Convert to fraction form
    19,245.40/28,868.10 = 5,392.60/x
  3. Step 3: Cross multiply
    19,245.40x = 28,868.10 × 5,392.60
  4. Step 4: Simplify right side
    19,245.40x = 155,674,116.06
  5. Step 5: Solve for x
    x = 155,674,116.06/19,245.40
  6. Step 6: Final answer
    x = 8,088.90

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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.