Home / 19,114.24-28,658.40-9,731.20

Finding the Fourth Proportional to 19,114.24, 28,658.40 and 9,731.20

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Solution

The fourth proportional to 19,114.24, 28,658.40 and 9,731.20 is: 14,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.24 : 28,658.40 = 9,731.20 : x
  2. Step 2: Convert to fraction form
    19,114.24/28,658.40 = 9,731.20/x
  3. Step 3: Cross multiply
    19,114.24x = 28,658.40 × 9,731.20
  4. Step 4: Simplify right side
    19,114.24x = 278,880,622.08
  5. Step 5: Solve for x
    x = 278,880,622.08/19,114.24
  6. Step 6: Final answer
    x = 14,590.20

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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.