Home / 23,212.80-34,819.20-19,713.60

Finding the Fourth Proportional to 23,212.80, 34,819.20 and 19,713.60

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Solution

The fourth proportional to 23,212.80, 34,819.20 and 19,713.60 is: 29,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,212.80 : 34,819.20 = 19,713.60 : x
  2. Step 2: Convert to fraction form
    23,212.80/34,819.20 = 19,713.60/x
  3. Step 3: Cross multiply
    23,212.80x = 34,819.20 × 19,713.60
  4. Step 4: Simplify right side
    23,212.80x = 686,411,781.12
  5. Step 5: Solve for x
    x = 686,411,781.12/23,212.80
  6. Step 6: Final answer
    x = 29,570.40

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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.