Home / 19,307.21-28,910.07-15,538.95

Finding the Fourth Proportional to 19,307.21, 28,910.07 and 15,538.95

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Solution

The fourth proportional to 19,307.21, 28,910.07 and 15,538.95 is: 23,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.21 : 28,910.07 = 15,538.95 : x
  2. Step 2: Convert to fraction form
    19,307.21/28,910.07 = 15,538.95/x
  3. Step 3: Cross multiply
    19,307.21x = 28,910.07 × 15,538.95
  4. Step 4: Simplify right side
    19,307.21x = 449,232,132.23
  5. Step 5: Solve for x
    x = 449,232,132.23/19,307.21
  6. Step 6: Final answer
    x = 23,267.59

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1.5x scale

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.