Home / 19,355.45-29,033.21-5,315.67

Finding the Fourth Proportional to 19,355.45, 29,033.21 and 5,315.67

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Solution

The fourth proportional to 19,355.45, 29,033.21 and 5,315.67 is: 7,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.45 : 29,033.21 = 5,315.67 : x
  2. Step 2: Convert to fraction form
    19,355.45/29,033.21 = 5,315.67/x
  3. Step 3: Cross multiply
    19,355.45x = 29,033.21 × 5,315.67
  4. Step 4: Simplify right side
    19,355.45x = 154,330,963.40
  5. Step 5: Solve for x
    x = 154,330,963.40/19,355.45
  6. Step 6: Final answer
    x = 7,973.51

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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.