Home / 19,219.76-28,838.86-10,454.67

Finding the Fourth Proportional to 19,219.76, 28,838.86 and 10,454.67

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Solution

The fourth proportional to 19,219.76, 28,838.86 and 10,454.67 is: 15,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.76 : 28,838.86 = 10,454.67 : x
  2. Step 2: Convert to fraction form
    19,219.76/28,838.86 = 10,454.67/x
  3. Step 3: Cross multiply
    19,219.76x = 28,838.86 × 10,454.67
  4. Step 4: Simplify right side
    19,219.76x = 301,500,764.48
  5. Step 5: Solve for x
    x = 301,500,764.48/19,219.76
  6. Step 6: Final answer
    x = 15,687.02

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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.