Home / 19,886.11-27,447.26-15,570.63

Finding the Fourth Proportional to 19,886.11, 27,447.26 and 15,570.63

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Solution

The fourth proportional to 19,886.11, 27,447.26 and 15,570.63 is: 21,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.11 : 27,447.26 = 15,570.63 : x
  2. Step 2: Convert to fraction form
    19,886.11/27,447.26 = 15,570.63/x
  3. Step 3: Cross multiply
    19,886.11x = 27,447.26 × 15,570.63
  4. Step 4: Simplify right side
    19,886.11x = 427,371,052.12
  5. Step 5: Solve for x
    x = 427,371,052.12/19,886.11
  6. Step 6: Final answer
    x = 21,490.94

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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.