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Finding the Fourth Proportional to 27,155.66, 40,736.30 and 7,434.21

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Solution

The fourth proportional to 27,155.66, 40,736.30 and 7,434.21 is: 11,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.66 : 40,736.30 = 7,434.21 : x
  2. Step 2: Convert to fraction form
    27,155.66/40,736.30 = 7,434.21/x
  3. Step 3: Cross multiply
    27,155.66x = 40,736.30 × 7,434.21
  4. Step 4: Simplify right side
    27,155.66x = 302,842,366.23
  5. Step 5: Solve for x
    x = 302,842,366.23/27,155.66
  6. Step 6: Final answer
    x = 11,152.09

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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.