Home / 16,518.80-24,778.20-16,421.60

Finding the Fourth Proportional to 16,518.80, 24,778.20 and 16,421.60

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Solution

The fourth proportional to 16,518.80, 24,778.20 and 16,421.60 is: 24,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.80 : 24,778.20 = 16,421.60 : x
  2. Step 2: Convert to fraction form
    16,518.80/24,778.20 = 16,421.60/x
  3. Step 3: Cross multiply
    16,518.80x = 24,778.20 × 16,421.60
  4. Step 4: Simplify right side
    16,518.80x = 406,897,689.12
  5. Step 5: Solve for x
    x = 406,897,689.12/16,518.80
  6. Step 6: Final answer
    x = 24,632.40

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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.