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Finding the Fourth Proportional to 35,502.84, 48,988.53 and 20,187.90

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Solution

The fourth proportional to 35,502.84, 48,988.53 and 20,187.90 is: 27,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,502.84 : 48,988.53 = 20,187.90 : x
  2. Step 2: Convert to fraction form
    35,502.84/48,988.53 = 20,187.90/x
  3. Step 3: Cross multiply
    35,502.84x = 48,988.53 × 20,187.90
  4. Step 4: Simplify right side
    35,502.84x = 988,975,544.79
  5. Step 5: Solve for x
    x = 988,975,544.79/35,502.84
  6. Step 6: Final answer
    x = 27,856.24

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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.