Home / 19,215.60-28,823.40-16,105.20

Finding the Fourth Proportional to 19,215.60, 28,823.40 and 16,105.20

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Solution

The fourth proportional to 19,215.60, 28,823.40 and 16,105.20 is: 24,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.60 : 28,823.40 = 16,105.20 : x
  2. Step 2: Convert to fraction form
    19,215.60/28,823.40 = 16,105.20/x
  3. Step 3: Cross multiply
    19,215.60x = 28,823.40 × 16,105.20
  4. Step 4: Simplify right side
    19,215.60x = 464,206,621.68
  5. Step 5: Solve for x
    x = 464,206,621.68/19,215.60
  6. Step 6: Final answer
    x = 24,157.80

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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.