Home / 21,252.51-29,328.38-11,821.07

Finding the Fourth Proportional to 21,252.51, 29,328.38 and 11,821.07

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Solution

The fourth proportional to 21,252.51, 29,328.38 and 11,821.07 is: 16,313.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.51 : 29,328.38 = 11,821.07 : x
  2. Step 2: Convert to fraction form
    21,252.51/29,328.38 = 11,821.07/x
  3. Step 3: Cross multiply
    21,252.51x = 29,328.38 × 11,821.07
  4. Step 4: Simplify right side
    21,252.51x = 346,692,730.09
  5. Step 5: Solve for x
    x = 346,692,730.09/21,252.51
  6. Step 6: Final answer
    x = 16,313.03

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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.