Home / 21,904.60-32,856.90-15,683.80

Finding the Fourth Proportional to 21,904.60, 32,856.90 and 15,683.80

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Solution

The fourth proportional to 21,904.60, 32,856.90 and 15,683.80 is: 23,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.60 : 32,856.90 = 15,683.80 : x
  2. Step 2: Convert to fraction form
    21,904.60/32,856.90 = 15,683.80/x
  3. Step 3: Cross multiply
    21,904.60x = 32,856.90 × 15,683.80
  4. Step 4: Simplify right side
    21,904.60x = 515,321,048.22
  5. Step 5: Solve for x
    x = 515,321,048.22/21,904.60
  6. Step 6: Final answer
    x = 23,525.70

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Similar ratio
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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.