Home / 21,414.42-29,551.86-13,030.92

Finding the Fourth Proportional to 21,414.42, 29,551.86 and 13,030.92

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Solution

The fourth proportional to 21,414.42, 29,551.86 and 13,030.92 is: 17,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.42 : 29,551.86 = 13,030.92 : x
  2. Step 2: Convert to fraction form
    21,414.42/29,551.86 = 13,030.92/x
  3. Step 3: Cross multiply
    21,414.42x = 29,551.86 × 13,030.92
  4. Step 4: Simplify right side
    21,414.42x = 385,087,923.51
  5. Step 5: Solve for x
    x = 385,087,923.51/21,414.42
  6. Step 6: Final answer
    x = 17,982.65

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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.