Home / 38,954.98-58,420.32-12,654.28

Finding the Fourth Proportional to 38,954.98, 58,420.32 and 12,654.28

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Solution

The fourth proportional to 38,954.98, 58,420.32 and 12,654.28 is: 18,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,954.98 : 58,420.32 = 12,654.28 : x
  2. Step 2: Convert to fraction form
    38,954.98/58,420.32 = 12,654.28/x
  3. Step 3: Cross multiply
    38,954.98x = 58,420.32 × 12,654.28
  4. Step 4: Simplify right side
    38,954.98x = 739,267,086.97
  5. Step 5: Solve for x
    x = 739,267,086.97/38,954.98
  6. Step 6: Final answer
    x = 18,977.47

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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.