Home / 19,118.08-28,479.97-18,537.70

Finding the Fourth Proportional to 19,118.08, 28,479.97 and 18,537.70

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Solution

The fourth proportional to 19,118.08, 28,479.97 and 18,537.70 is: 27,615.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.08 : 28,479.97 = 18,537.70 : x
  2. Step 2: Convert to fraction form
    19,118.08/28,479.97 = 18,537.70/x
  3. Step 3: Cross multiply
    19,118.08x = 28,479.97 × 18,537.70
  4. Step 4: Simplify right side
    19,118.08x = 527,953,139.87
  5. Step 5: Solve for x
    x = 527,953,139.87/19,118.08
  6. Step 6: Final answer
    x = 27,615.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.