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Finding the Fourth Proportional to 35,064, 48,389.40 and 20,160

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Solution

The fourth proportional to 35,064, 48,389.40 and 20,160 is: 27,821.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,064 : 48,389.40 = 20,160 : x
  2. Step 2: Convert to fraction form
    35,064/48,389.40 = 20,160/x
  3. Step 3: Cross multiply
    35,064x = 48,389.40 × 20,160
  4. Step 4: Simplify right side
    35,064x = 975,530,304
  5. Step 5: Solve for x
    x = 975,530,304/35,064
  6. Step 6: Final answer
    x = 27,821.42

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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.