Home / 20,023.40-30,045.90-8,337.80

Finding the Fourth Proportional to 20,023.40, 30,045.90 and 8,337.80

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Solution

The fourth proportional to 20,023.40, 30,045.90 and 8,337.80 is: 12,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.40 : 30,045.90 = 8,337.80 : x
  2. Step 2: Convert to fraction form
    20,023.40/30,045.90 = 8,337.80/x
  3. Step 3: Cross multiply
    20,023.40x = 30,045.90 × 8,337.80
  4. Step 4: Simplify right side
    20,023.40x = 250,516,705.02
  5. Step 5: Solve for x
    x = 250,516,705.02/20,023.40
  6. Step 6: Final answer
    x = 12,511.20

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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.