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Finding the Fourth Proportional to 28,000.95, 42,000.90 and 6,941.04

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Solution

The fourth proportional to 28,000.95, 42,000.90 and 6,941.04 is: 10,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.95 : 42,000.90 = 6,941.04 : x
  2. Step 2: Convert to fraction form
    28,000.95/42,000.90 = 6,941.04/x
  3. Step 3: Cross multiply
    28,000.95x = 42,000.90 × 6,941.04
  4. Step 4: Simplify right side
    28,000.95x = 291,529,743.40
  5. Step 5: Solve for x
    x = 291,529,743.40/28,000.95
  6. Step 6: Final answer
    x = 10,411.42

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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.