Home / 29,265.60-40,387.20-16,690.40

Finding the Fourth Proportional to 29,265.60, 40,387.20 and 16,690.40

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Solution

The fourth proportional to 29,265.60, 40,387.20 and 16,690.40 is: 23,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,265.60 : 40,387.20 = 16,690.40 : x
  2. Step 2: Convert to fraction form
    29,265.60/40,387.20 = 16,690.40/x
  3. Step 3: Cross multiply
    29,265.60x = 40,387.20 × 16,690.40
  4. Step 4: Simplify right side
    29,265.60x = 674,078,522.88
  5. Step 5: Solve for x
    x = 674,078,522.88/29,265.60
  6. Step 6: Final answer
    x = 23,033.14

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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.