Home / 19,048.68-28,616.88-13,515.72

Finding the Fourth Proportional to 19,048.68, 28,616.88 and 13,515.72

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Solution

The fourth proportional to 19,048.68, 28,616.88 and 13,515.72 is: 20,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,048.68 : 28,616.88 = 13,515.72 : x
  2. Step 2: Convert to fraction form
    19,048.68/28,616.88 = 13,515.72/x
  3. Step 3: Cross multiply
    19,048.68x = 28,616.88 × 13,515.72
  4. Step 4: Simplify right side
    19,048.68x = 386,777,737.35
  5. Step 5: Solve for x
    x = 386,777,737.35/19,048.68
  6. Step 6: Final answer
    x = 20,304.70

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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.