Home / 27,982.32-38,615.64-15,407.08

Finding the Fourth Proportional to 27,982.32, 38,615.64 and 15,407.08

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Solution

The fourth proportional to 27,982.32, 38,615.64 and 15,407.08 is: 21,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,982.32 : 38,615.64 = 15,407.08 : x
  2. Step 2: Convert to fraction form
    27,982.32/38,615.64 = 15,407.08/x
  3. Step 3: Cross multiply
    27,982.32x = 38,615.64 × 15,407.08
  4. Step 4: Simplify right side
    27,982.32x = 594,954,254.73
  5. Step 5: Solve for x
    x = 594,954,254.73/27,982.32
  6. Step 6: Final answer
    x = 21,261.79

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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.