Home / 21,574.71-29,769.62-12,014.48

Finding the Fourth Proportional to 21,574.71, 29,769.62 and 12,014.48

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Solution

The fourth proportional to 21,574.71, 29,769.62 and 12,014.48 is: 16,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,574.71 : 29,769.62 = 12,014.48 : x
  2. Step 2: Convert to fraction form
    21,574.71/29,769.62 = 12,014.48/x
  3. Step 3: Cross multiply
    21,574.71x = 29,769.62 × 12,014.48
  4. Step 4: Simplify right side
    21,574.71x = 357,666,608.56
  5. Step 5: Solve for x
    x = 357,666,608.56/21,574.71
  6. Step 6: Final answer
    x = 16,578.05

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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.