Home / 19,271.46-28,889.66-7,417.68

Finding the Fourth Proportional to 19,271.46, 28,889.66 and 7,417.68

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Solution

The fourth proportional to 19,271.46, 28,889.66 and 7,417.68 is: 11,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.46 : 28,889.66 = 7,417.68 : x
  2. Step 2: Convert to fraction form
    19,271.46/28,889.66 = 7,417.68/x
  3. Step 3: Cross multiply
    19,271.46x = 28,889.66 × 7,417.68
  4. Step 4: Simplify right side
    19,271.46x = 214,294,216.10
  5. Step 5: Solve for x
    x = 214,294,216.10/19,271.46
  6. Step 6: Final answer
    x = 11,119.77

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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.