Home / 21,429.96-29,553.51-14,703.72

Finding the Fourth Proportional to 21,429.96, 29,553.51 and 14,703.72

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Solution

The fourth proportional to 21,429.96, 29,553.51 and 14,703.72 is: 20,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.96 : 29,553.51 = 14,703.72 : x
  2. Step 2: Convert to fraction form
    21,429.96/29,553.51 = 14,703.72/x
  3. Step 3: Cross multiply
    21,429.96x = 29,553.51 × 14,703.72
  4. Step 4: Simplify right side
    21,429.96x = 434,546,536.06
  5. Step 5: Solve for x
    x = 434,546,536.06/21,429.96
  6. Step 6: Final answer
    x = 20,277.52

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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.