Home / 19,207.55-28,683.28-18,223.40

Finding the Fourth Proportional to 19,207.55, 28,683.28 and 18,223.40

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Solution

The fourth proportional to 19,207.55, 28,683.28 and 18,223.40 is: 27,213.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.55 : 28,683.28 = 18,223.40 : x
  2. Step 2: Convert to fraction form
    19,207.55/28,683.28 = 18,223.40/x
  3. Step 3: Cross multiply
    19,207.55x = 28,683.28 × 18,223.40
  4. Step 4: Simplify right side
    19,207.55x = 522,706,876.73
  5. Step 5: Solve for x
    x = 522,706,876.73/19,207.55
  6. Step 6: Final answer
    x = 27,213.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.