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Finding the Fourth Proportional to 28,117.08, 42,174.54 and 7,057.08

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Solution

The fourth proportional to 28,117.08, 42,174.54 and 7,057.08 is: 10,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.08 : 42,174.54 = 7,057.08 : x
  2. Step 2: Convert to fraction form
    28,117.08/42,174.54 = 7,057.08/x
  3. Step 3: Cross multiply
    28,117.08x = 42,174.54 × 7,057.08
  4. Step 4: Simplify right side
    28,117.08x = 297,629,102.74
  5. Step 5: Solve for x
    x = 297,629,102.74/28,117.08
  6. Step 6: Final answer
    x = 10,585.35

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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.