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Finding the Fourth Proportional to 18,802.92, 28,192.68 and 12,952.92

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Solution

The fourth proportional to 18,802.92, 28,192.68 and 12,952.92 is: 19,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.92 : 28,192.68 = 12,952.92 : x
  2. Step 2: Convert to fraction form
    18,802.92/28,192.68 = 12,952.92/x
  3. Step 3: Cross multiply
    18,802.92x = 28,192.68 × 12,952.92
  4. Step 4: Simplify right side
    18,802.92x = 365,177,528.63
  5. Step 5: Solve for x
    x = 365,177,528.63/18,802.92
  6. Step 6: Final answer
    x = 19,421.32

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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.