Home / 14,378.92-21,580.83-14,345.67

Finding the Fourth Proportional to 14,378.92, 21,580.83 and 14,345.67

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Solution

The fourth proportional to 14,378.92, 21,580.83 and 14,345.67 is: 21,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.92 : 21,580.83 = 14,345.67 : x
  2. Step 2: Convert to fraction form
    14,378.92/21,580.83 = 14,345.67/x
  3. Step 3: Cross multiply
    14,378.92x = 21,580.83 × 14,345.67
  4. Step 4: Simplify right side
    14,378.92x = 309,591,456.46
  5. Step 5: Solve for x
    x = 309,591,456.46/14,378.92
  6. Step 6: Final answer
    x = 21,530.93

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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.