Home / 20,025.90-30,053.55-8,939.87

Finding the Fourth Proportional to 20,025.90, 30,053.55 and 8,939.87

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Solution

The fourth proportional to 20,025.90, 30,053.55 and 8,939.87 is: 13,416.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.90 : 30,053.55 = 8,939.87 : x
  2. Step 2: Convert to fraction form
    20,025.90/30,053.55 = 8,939.87/x
  3. Step 3: Cross multiply
    20,025.90x = 30,053.55 × 8,939.87
  4. Step 4: Simplify right side
    20,025.90x = 268,674,679.77
  5. Step 5: Solve for x
    x = 268,674,679.77/20,025.90
  6. Step 6: Final answer
    x = 13,416.36

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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.