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Finding the Fourth Proportional to 29,479.76, 40,670.28 and 17,538.72

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Solution

The fourth proportional to 29,479.76, 40,670.28 and 17,538.72 is: 24,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,479.76 : 40,670.28 = 17,538.72 : x
  2. Step 2: Convert to fraction form
    29,479.76/40,670.28 = 17,538.72/x
  3. Step 3: Cross multiply
    29,479.76x = 40,670.28 × 17,538.72
  4. Step 4: Simplify right side
    29,479.76x = 713,304,653.24
  5. Step 5: Solve for x
    x = 713,304,653.24/29,479.76
  6. Step 6: Final answer
    x = 24,196.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.