Home / 19,529.61-29,297.54-8,439.67

Finding the Fourth Proportional to 19,529.61, 29,297.54 and 8,439.67

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Solution

The fourth proportional to 19,529.61, 29,297.54 and 8,439.67 is: 12,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,529.61 : 29,297.54 = 8,439.67 : x
  2. Step 2: Convert to fraction form
    19,529.61/29,297.54 = 8,439.67/x
  3. Step 3: Cross multiply
    19,529.61x = 29,297.54 × 8,439.67
  4. Step 4: Simplify right side
    19,529.61x = 247,261,569.41
  5. Step 5: Solve for x
    x = 247,261,569.41/19,529.61
  6. Step 6: Final answer
    x = 12,660.86

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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.