Home / 21,376.25-29,498.67-11,816.94

Finding the Fourth Proportional to 21,376.25, 29,498.67 and 11,816.94

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Solution

The fourth proportional to 21,376.25, 29,498.67 and 11,816.94 is: 16,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.25 : 29,498.67 = 11,816.94 : x
  2. Step 2: Convert to fraction form
    21,376.25/29,498.67 = 11,816.94/x
  3. Step 3: Cross multiply
    21,376.25x = 29,498.67 × 11,816.94
  4. Step 4: Simplify right side
    21,376.25x = 348,583,895.52
  5. Step 5: Solve for x
    x = 348,583,895.52/21,376.25
  6. Step 6: Final answer
    x = 16,307.06

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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.