Home / 19,942.72-30,032.80-17,376.64

Finding the Fourth Proportional to 19,942.72, 30,032.80 and 17,376.64

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Solution

The fourth proportional to 19,942.72, 30,032.80 and 17,376.64 is: 26,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.72 : 30,032.80 = 17,376.64 : x
  2. Step 2: Convert to fraction form
    19,942.72/30,032.80 = 17,376.64/x
  3. Step 3: Cross multiply
    19,942.72x = 30,032.80 × 17,376.64
  4. Step 4: Simplify right side
    19,942.72x = 521,869,153.79
  5. Step 5: Solve for x
    x = 521,869,153.79/19,942.72
  6. Step 6: Final answer
    x = 26,168.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.