Home / 20,026.90-30,055.05-8,940.87

Finding the Fourth Proportional to 20,026.90, 30,055.05 and 8,940.87

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Solution

The fourth proportional to 20,026.90, 30,055.05 and 8,940.87 is: 13,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.90 : 30,055.05 = 8,940.87 : x
  2. Step 2: Convert to fraction form
    20,026.90/30,055.05 = 8,940.87/x
  3. Step 3: Cross multiply
    20,026.90x = 30,055.05 × 8,940.87
  4. Step 4: Simplify right side
    20,026.90x = 268,718,294.89
  5. Step 5: Solve for x
    x = 268,718,294.89/20,026.90
  6. Step 6: Final answer
    x = 13,417.87

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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.