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Finding the Fourth Proportional to 27,215.86, 40,784.84 and 15,504.88

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Solution

The fourth proportional to 27,215.86, 40,784.84 and 15,504.88 is: 23,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.86 : 40,784.84 = 15,504.88 : x
  2. Step 2: Convert to fraction form
    27,215.86/40,784.84 = 15,504.88/x
  3. Step 3: Cross multiply
    27,215.86x = 40,784.84 × 15,504.88
  4. Step 4: Simplify right side
    27,215.86x = 632,364,050.02
  5. Step 5: Solve for x
    x = 632,364,050.02/27,215.86
  6. Step 6: Final answer
    x = 23,235.13

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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.