Home / 19,170.32-28,706.52-15,280.40

Finding the Fourth Proportional to 19,170.32, 28,706.52 and 15,280.40

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Solution

The fourth proportional to 19,170.32, 28,706.52 and 15,280.40 is: 22,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.32 : 28,706.52 = 15,280.40 : x
  2. Step 2: Convert to fraction form
    19,170.32/28,706.52 = 15,280.40/x
  3. Step 3: Cross multiply
    19,170.32x = 28,706.52 × 15,280.40
  4. Step 4: Simplify right side
    19,170.32x = 438,647,108.21
  5. Step 5: Solve for x
    x = 438,647,108.21/19,170.32
  6. Step 6: Final answer
    x = 22,881.57

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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.