Home / 21,133.96-29,154.68-13,966.68

Finding the Fourth Proportional to 21,133.96, 29,154.68 and 13,966.68

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Solution

The fourth proportional to 21,133.96, 29,154.68 and 13,966.68 is: 19,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.96 : 29,154.68 = 13,966.68 : x
  2. Step 2: Convert to fraction form
    21,133.96/29,154.68 = 13,966.68/x
  3. Step 3: Cross multiply
    21,133.96x = 29,154.68 × 13,966.68
  4. Step 4: Simplify right side
    21,133.96x = 407,194,092.50
  5. Step 5: Solve for x
    x = 407,194,092.50/21,133.96
  6. Step 6: Final answer
    x = 19,267.29

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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.