Home / 34,249.40-51,341.70-20,220.20

Finding the Fourth Proportional to 34,249.40, 51,341.70 and 20,220.20

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Solution

The fourth proportional to 34,249.40, 51,341.70 and 20,220.20 is: 30,311.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,249.40 : 51,341.70 = 20,220.20 : x
  2. Step 2: Convert to fraction form
    34,249.40/51,341.70 = 20,220.20/x
  3. Step 3: Cross multiply
    34,249.40x = 51,341.70 × 20,220.20
  4. Step 4: Simplify right side
    34,249.40x = 1,038,139,442.34
  5. Step 5: Solve for x
    x = 1,038,139,442.34/34,249.40
  6. Step 6: Final answer
    x = 30,311.17

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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.