Home / 42,817.20-64,244.16-16,540.40

Finding the Fourth Proportional to 42,817.20, 64,244.16 and 16,540.40

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Solution

The fourth proportional to 42,817.20, 64,244.16 and 16,540.40 is: 24,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,817.20 : 64,244.16 = 16,540.40 : x
  2. Step 2: Convert to fraction form
    42,817.20/64,244.16 = 16,540.40/x
  3. Step 3: Cross multiply
    42,817.20x = 64,244.16 × 16,540.40
  4. Step 4: Simplify right side
    42,817.20x = 1,062,624,104.06
  5. Step 5: Solve for x
    x = 1,062,624,104.06/42,817.20
  6. Step 6: Final answer
    x = 24,817.69

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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.