Home / 21,189.17-29,246.42-14,477.51

Finding the Fourth Proportional to 21,189.17, 29,246.42 and 14,477.51

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Solution

The fourth proportional to 21,189.17, 29,246.42 and 14,477.51 is: 19,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.17 : 29,246.42 = 14,477.51 : x
  2. Step 2: Convert to fraction form
    21,189.17/29,246.42 = 14,477.51/x
  3. Step 3: Cross multiply
    21,189.17x = 29,246.42 × 14,477.51
  4. Step 4: Simplify right side
    21,189.17x = 423,415,227.98
  5. Step 5: Solve for x
    x = 423,415,227.98/21,189.17
  6. Step 6: Final answer
    x = 19,982.63

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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.