Home / 21,853.18-32,823.93-13,104.70

Finding the Fourth Proportional to 21,853.18, 32,823.93 and 13,104.70

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Solution

The fourth proportional to 21,853.18, 32,823.93 and 13,104.70 is: 19,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.18 : 32,823.93 = 13,104.70 : x
  2. Step 2: Convert to fraction form
    21,853.18/32,823.93 = 13,104.70/x
  3. Step 3: Cross multiply
    21,853.18x = 32,823.93 × 13,104.70
  4. Step 4: Simplify right side
    21,853.18x = 430,147,755.47
  5. Step 5: Solve for x
    x = 430,147,755.47/21,853.18
  6. Step 6: Final answer
    x = 19,683.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.