Home / 20,053.99-27,681.80-11,670.49

Finding the Fourth Proportional to 20,053.99, 27,681.80 and 11,670.49

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Solution

The fourth proportional to 20,053.99, 27,681.80 and 11,670.49 is: 16,109.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.99 : 27,681.80 = 11,670.49 : x
  2. Step 2: Convert to fraction form
    20,053.99/27,681.80 = 11,670.49/x
  3. Step 3: Cross multiply
    20,053.99x = 27,681.80 × 11,670.49
  4. Step 4: Simplify right side
    20,053.99x = 323,060,170.08
  5. Step 5: Solve for x
    x = 323,060,170.08/20,053.99
  6. Step 6: Final answer
    x = 16,109.52

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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.