Home / 19,291.48-28,913.38-11,385.99

Finding the Fourth Proportional to 19,291.48, 28,913.38 and 11,385.99

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Solution

The fourth proportional to 19,291.48, 28,913.38 and 11,385.99 is: 17,064.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.48 : 28,913.38 = 11,385.99 : x
  2. Step 2: Convert to fraction form
    19,291.48/28,913.38 = 11,385.99/x
  3. Step 3: Cross multiply
    19,291.48x = 28,913.38 × 11,385.99
  4. Step 4: Simplify right side
    19,291.48x = 329,207,427.08
  5. Step 5: Solve for x
    x = 329,207,427.08/19,291.48
  6. Step 6: Final answer
    x = 17,064.92

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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.