Home / 19,017.79-28,491.14-15,917.72

Finding the Fourth Proportional to 19,017.79, 28,491.14 and 15,917.72

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Solution

The fourth proportional to 19,017.79, 28,491.14 and 15,917.72 is: 23,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.79 : 28,491.14 = 15,917.72 : x
  2. Step 2: Convert to fraction form
    19,017.79/28,491.14 = 15,917.72/x
  3. Step 3: Cross multiply
    19,017.79x = 28,491.14 × 15,917.72
  4. Step 4: Simplify right side
    19,017.79x = 453,513,886.34
  5. Step 5: Solve for x
    x = 453,513,886.34/19,017.79
  6. Step 6: Final answer
    x = 23,846.83

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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.