Home / 19,991.41-27,587.69-10,916.47

Finding the Fourth Proportional to 19,991.41, 27,587.69 and 10,916.47

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Solution

The fourth proportional to 19,991.41, 27,587.69 and 10,916.47 is: 15,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.41 : 27,587.69 = 10,916.47 : x
  2. Step 2: Convert to fraction form
    19,991.41/27,587.69 = 10,916.47/x
  3. Step 3: Cross multiply
    19,991.41x = 27,587.69 × 10,916.47
  4. Step 4: Simplify right side
    19,991.41x = 301,160,066.70
  5. Step 5: Solve for x
    x = 301,160,066.70/19,991.41
  6. Step 6: Final answer
    x = 15,064.48

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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.