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Finding the Fourth Proportional to 29,513, 40,728.48 and 16,940.72

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Solution

The fourth proportional to 29,513, 40,728.48 and 16,940.72 is: 23,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,513 : 40,728.48 = 16,940.72 : x
  2. Step 2: Convert to fraction form
    29,513/40,728.48 = 16,940.72/x
  3. Step 3: Cross multiply
    29,513x = 40,728.48 × 16,940.72
  4. Step 4: Simplify right side
    29,513x = 689,969,775.71
  5. Step 5: Solve for x
    x = 689,969,775.71/29,513
  6. Step 6: Final answer
    x = 23,378.50

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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.