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Finding the Fourth Proportional to 19,323, 28,973.85 and 5,992.31

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Solution

The fourth proportional to 19,323, 28,973.85 and 5,992.31 is: 8,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323 : 28,973.85 = 5,992.31 : x
  2. Step 2: Convert to fraction form
    19,323/28,973.85 = 5,992.31/x
  3. Step 3: Cross multiply
    19,323x = 28,973.85 × 5,992.31
  4. Step 4: Simplify right side
    19,323x = 173,620,146.22
  5. Step 5: Solve for x
    x = 173,620,146.22/19,323
  6. Step 6: Final answer
    x = 8,985.15

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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.