Home / 27,822.64-38,398.92-15,883.28

Finding the Fourth Proportional to 27,822.64, 38,398.92 and 15,883.28

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Solution

The fourth proportional to 27,822.64, 38,398.92 and 15,883.28 is: 21,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,822.64 : 38,398.92 = 15,883.28 : x
  2. Step 2: Convert to fraction form
    27,822.64/38,398.92 = 15,883.28/x
  3. Step 3: Cross multiply
    27,822.64x = 38,398.92 × 15,883.28
  4. Step 4: Simplify right side
    27,822.64x = 609,900,798.06
  5. Step 5: Solve for x
    x = 609,900,798.06/27,822.64
  6. Step 6: Final answer
    x = 21,921.03

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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.