Home / 21,457.54-32,164.44-19,565.80

Finding the Fourth Proportional to 21,457.54, 32,164.44 and 19,565.80

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Solution

The fourth proportional to 21,457.54, 32,164.44 and 19,565.80 is: 29,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.54 : 32,164.44 = 19,565.80 : x
  2. Step 2: Convert to fraction form
    21,457.54/32,164.44 = 19,565.80/x
  3. Step 3: Cross multiply
    21,457.54x = 32,164.44 × 19,565.80
  4. Step 4: Simplify right side
    21,457.54x = 629,323,000.15
  5. Step 5: Solve for x
    x = 629,323,000.15/21,457.54
  6. Step 6: Final answer
    x = 29,328.76

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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.