Home / 20,280.22-30,379.01-16,545.31

Finding the Fourth Proportional to 20,280.22, 30,379.01 and 16,545.31

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Solution

The fourth proportional to 20,280.22, 30,379.01 and 16,545.31 is: 24,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280.22 : 30,379.01 = 16,545.31 : x
  2. Step 2: Convert to fraction form
    20,280.22/30,379.01 = 16,545.31/x
  3. Step 3: Cross multiply
    20,280.22x = 30,379.01 × 16,545.31
  4. Step 4: Simplify right side
    20,280.22x = 502,630,030.89
  5. Step 5: Solve for x
    x = 502,630,030.89/20,280.22
  6. Step 6: Final answer
    x = 24,784.25

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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.