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Finding the Fourth Proportional to 27,008.91, 40,513.36 and 7,287.47

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Solution

The fourth proportional to 27,008.91, 40,513.36 and 7,287.47 is: 10,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,008.91 : 40,513.36 = 7,287.47 : x
  2. Step 2: Convert to fraction form
    27,008.91/40,513.36 = 7,287.47/x
  3. Step 3: Cross multiply
    27,008.91x = 40,513.36 × 7,287.47
  4. Step 4: Simplify right side
    27,008.91x = 295,239,783.03
  5. Step 5: Solve for x
    x = 295,239,783.03/27,008.91
  6. Step 6: Final answer
    x = 10,931.20

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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.