Home / 19,981.64-27,575.57-11,486.51

Finding the Fourth Proportional to 19,981.64, 27,575.57 and 11,486.51

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Solution

The fourth proportional to 19,981.64, 27,575.57 and 11,486.51 is: 15,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.64 : 27,575.57 = 11,486.51 : x
  2. Step 2: Convert to fraction form
    19,981.64/27,575.57 = 11,486.51/x
  3. Step 3: Cross multiply
    19,981.64x = 27,575.57 × 11,486.51
  4. Step 4: Simplify right side
    19,981.64x = 316,747,158.22
  5. Step 5: Solve for x
    x = 316,747,158.22/19,981.64
  6. Step 6: Final answer
    x = 15,851.91

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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.