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Finding the Fourth Proportional to 19,344.92, 28,980.01 and 14,270.16

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Solution

The fourth proportional to 19,344.92, 28,980.01 and 14,270.16 is: 21,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.92 : 28,980.01 = 14,270.16 : x
  2. Step 2: Convert to fraction form
    19,344.92/28,980.01 = 14,270.16/x
  3. Step 3: Cross multiply
    19,344.92x = 28,980.01 × 14,270.16
  4. Step 4: Simplify right side
    19,344.92x = 413,549,379.50
  5. Step 5: Solve for x
    x = 413,549,379.50/19,344.92
  6. Step 6: Final answer
    x = 21,377.67

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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.