Home / 27,796.16-38,360.72-15,859.76

Finding the Fourth Proportional to 27,796.16, 38,360.72 and 15,859.76

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Solution

The fourth proportional to 27,796.16, 38,360.72 and 15,859.76 is: 21,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,796.16 : 38,360.72 = 15,859.76 : x
  2. Step 2: Convert to fraction form
    27,796.16/38,360.72 = 15,859.76/x
  3. Step 3: Cross multiply
    27,796.16x = 38,360.72 × 15,859.76
  4. Step 4: Simplify right side
    27,796.16x = 608,391,812.63
  5. Step 5: Solve for x
    x = 608,391,812.63/27,796.16
  6. Step 6: Final answer
    x = 21,887.62

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1.5x scale

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.