Home / 21,214.14-29,276.55-11,782.50

Finding the Fourth Proportional to 21,214.14, 29,276.55 and 11,782.50

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Solution

The fourth proportional to 21,214.14, 29,276.55 and 11,782.50 is: 16,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.14 : 29,276.55 = 11,782.50 : x
  2. Step 2: Convert to fraction form
    21,214.14/29,276.55 = 11,782.50/x
  3. Step 3: Cross multiply
    21,214.14x = 29,276.55 × 11,782.50
  4. Step 4: Simplify right side
    21,214.14x = 344,950,950.38
  5. Step 5: Solve for x
    x = 344,950,950.38/21,214.14
  6. Step 6: Final answer
    x = 16,260.43

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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.