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Finding the Fourth Proportional to 32,721.88, 45,158 and 19,301

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Solution

The fourth proportional to 32,721.88, 45,158 and 19,301 is: 26,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,721.88 : 45,158 = 19,301 : x
  2. Step 2: Convert to fraction form
    32,721.88/45,158 = 19,301/x
  3. Step 3: Cross multiply
    32,721.88x = 45,158 × 19,301
  4. Step 4: Simplify right side
    32,721.88x = 871,594,558
  5. Step 5: Solve for x
    x = 871,594,558/32,721.88
  6. Step 6: Final answer
    x = 26,636.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.