Home / 27,210.78-40,816.38-7,490.42

Finding the Fourth Proportional to 27,210.78, 40,816.38 and 7,490.42

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Solution

The fourth proportional to 27,210.78, 40,816.38 and 7,490.42 is: 11,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,210.78 : 40,816.38 = 7,490.42 : x
  2. Step 2: Convert to fraction form
    27,210.78/40,816.38 = 7,490.42/x
  3. Step 3: Cross multiply
    27,210.78x = 40,816.38 × 7,490.42
  4. Step 4: Simplify right side
    27,210.78x = 305,731,829.08
  5. Step 5: Solve for x
    x = 305,731,829.08/27,210.78
  6. Step 6: Final answer
    x = 11,235.69

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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.