Home / 26,280.80-39,421.20-16,439.30

Finding the Fourth Proportional to 26,280.80, 39,421.20 and 16,439.30

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Solution

The fourth proportional to 26,280.80, 39,421.20 and 16,439.30 is: 24,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,280.80 : 39,421.20 = 16,439.30 : x
  2. Step 2: Convert to fraction form
    26,280.80/39,421.20 = 16,439.30/x
  3. Step 3: Cross multiply
    26,280.80x = 39,421.20 × 16,439.30
  4. Step 4: Simplify right side
    26,280.80x = 648,056,933.16
  5. Step 5: Solve for x
    x = 648,056,933.16/26,280.80
  6. Step 6: Final answer
    x = 24,658.95

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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.