Home / 21,452.61-32,143.77-20,632.50

Finding the Fourth Proportional to 21,452.61, 32,143.77 and 20,632.50

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Solution

The fourth proportional to 21,452.61, 32,143.77 and 20,632.50 is: 30,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.61 : 32,143.77 = 20,632.50 : x
  2. Step 2: Convert to fraction form
    21,452.61/32,143.77 = 20,632.50/x
  3. Step 3: Cross multiply
    21,452.61x = 32,143.77 × 20,632.50
  4. Step 4: Simplify right side
    21,452.61x = 663,206,334.53
  5. Step 5: Solve for x
    x = 663,206,334.53/21,452.61
  6. Step 6: Final answer
    x = 30,914.95

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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.