Home / 34,248.40-51,340.20-20,219.20

Finding the Fourth Proportional to 34,248.40, 51,340.20 and 20,219.20

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Solution

The fourth proportional to 34,248.40, 51,340.20 and 20,219.20 is: 30,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,248.40 : 51,340.20 = 20,219.20 : x
  2. Step 2: Convert to fraction form
    34,248.40/51,340.20 = 20,219.20/x
  3. Step 3: Cross multiply
    34,248.40x = 51,340.20 × 20,219.20
  4. Step 4: Simplify right side
    34,248.40x = 1,038,057,771.84
  5. Step 5: Solve for x
    x = 1,038,057,771.84/34,248.40
  6. Step 6: Final answer
    x = 30,309.67

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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.