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Finding the Fourth Proportional to 28,668.96, 43,000.74 and 9,946.08

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Solution

The fourth proportional to 28,668.96, 43,000.74 and 9,946.08 is: 14,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.96 : 43,000.74 = 9,946.08 : x
  2. Step 2: Convert to fraction form
    28,668.96/43,000.74 = 9,946.08/x
  3. Step 3: Cross multiply
    28,668.96x = 43,000.74 × 9,946.08
  4. Step 4: Simplify right side
    28,668.96x = 427,688,800.10
  5. Step 5: Solve for x
    x = 427,688,800.10/28,668.96
  6. Step 6: Final answer
    x = 14,918.18

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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.