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Finding the Fourth Proportional to 29,017.20, 40,043.40 and 16,442.40

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Solution

The fourth proportional to 29,017.20, 40,043.40 and 16,442.40 is: 22,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,017.20 : 40,043.40 = 16,442.40 : x
  2. Step 2: Convert to fraction form
    29,017.20/40,043.40 = 16,442.40/x
  3. Step 3: Cross multiply
    29,017.20x = 40,043.40 × 16,442.40
  4. Step 4: Simplify right side
    29,017.20x = 658,409,600.16
  5. Step 5: Solve for x
    x = 658,409,600.16/29,017.20
  6. Step 6: Final answer
    x = 22,690.32

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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.