Home / 21,485.17-29,648.94-11,794.63

Finding the Fourth Proportional to 21,485.17, 29,648.94 and 11,794.63

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Solution

The fourth proportional to 21,485.17, 29,648.94 and 11,794.63 is: 16,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.17 : 29,648.94 = 11,794.63 : x
  2. Step 2: Convert to fraction form
    21,485.17/29,648.94 = 11,794.63/x
  3. Step 3: Cross multiply
    21,485.17x = 29,648.94 × 11,794.63
  4. Step 4: Simplify right side
    21,485.17x = 349,698,151.89
  5. Step 5: Solve for x
    x = 349,698,151.89/21,485.17
  6. Step 6: Final answer
    x = 16,276.25

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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.