Home / 27,158.58-40,746.69-13,120.20

Finding the Fourth Proportional to 27,158.58, 40,746.69 and 13,120.20

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Solution

The fourth proportional to 27,158.58, 40,746.69 and 13,120.20 is: 19,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,158.58 : 40,746.69 = 13,120.20 : x
  2. Step 2: Convert to fraction form
    27,158.58/40,746.69 = 13,120.20/x
  3. Step 3: Cross multiply
    27,158.58x = 40,746.69 × 13,120.20
  4. Step 4: Simplify right side
    27,158.58x = 534,604,722.14
  5. Step 5: Solve for x
    x = 534,604,722.14/27,158.58
  6. Step 6: Final answer
    x = 19,684.56

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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.