Home / 21,403.18-32,069.64-20,582.92

Finding the Fourth Proportional to 21,403.18, 32,069.64 and 20,582.92

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Solution

The fourth proportional to 21,403.18, 32,069.64 and 20,582.92 is: 30,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.18 : 32,069.64 = 20,582.92 : x
  2. Step 2: Convert to fraction form
    21,403.18/32,069.64 = 20,582.92/x
  3. Step 3: Cross multiply
    21,403.18x = 32,069.64 × 20,582.92
  4. Step 4: Simplify right side
    21,403.18x = 660,086,834.55
  5. Step 5: Solve for x
    x = 660,086,834.55/21,403.18
  6. Step 6: Final answer
    x = 30,840.60

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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.