Home / 38,904.64-58,344.72-12,603.28

Finding the Fourth Proportional to 38,904.64, 58,344.72 and 12,603.28

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Solution

The fourth proportional to 38,904.64, 58,344.72 and 12,603.28 is: 18,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,904.64 : 58,344.72 = 12,603.28 : x
  2. Step 2: Convert to fraction form
    38,904.64/58,344.72 = 12,603.28/x
  3. Step 3: Cross multiply
    38,904.64x = 58,344.72 × 12,603.28
  4. Step 4: Simplify right side
    38,904.64x = 735,334,842.68
  5. Step 5: Solve for x
    x = 735,334,842.68/38,904.64
  6. Step 6: Final answer
    x = 18,900.95

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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.