Home / 23,987.61-33,102.27-13,378.23

Finding the Fourth Proportional to 23,987.61, 33,102.27 and 13,378.23

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Solution

The fourth proportional to 23,987.61, 33,102.27 and 13,378.23 is: 18,461.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,987.61 : 33,102.27 = 13,378.23 : x
  2. Step 2: Convert to fraction form
    23,987.61/33,102.27 = 13,378.23/x
  3. Step 3: Cross multiply
    23,987.61x = 33,102.27 × 13,378.23
  4. Step 4: Simplify right side
    23,987.61x = 442,849,781.58
  5. Step 5: Solve for x
    x = 442,849,781.58/23,987.61
  6. Step 6: Final answer
    x = 18,461.61

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Double scale
Find fourth proportional to 23,988.61, 33,103.65 and 13,379.23
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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.