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Finding the Fourth Proportional to 21,497.98, 29,668.48 and 12,544.95

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Solution

The fourth proportional to 21,497.98, 29,668.48 and 12,544.95 is: 17,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.98 : 29,668.48 = 12,544.95 : x
  2. Step 2: Convert to fraction form
    21,497.98/29,668.48 = 12,544.95/x
  3. Step 3: Cross multiply
    21,497.98x = 29,668.48 × 12,544.95
  4. Step 4: Simplify right side
    21,497.98x = 372,189,594.63
  5. Step 5: Solve for x
    x = 372,189,594.63/21,497.98
  6. Step 6: Final answer
    x = 17,312.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.