Home / 27,921.08-38,531.82-15,346.16

Finding the Fourth Proportional to 27,921.08, 38,531.82 and 15,346.16

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Solution

The fourth proportional to 27,921.08, 38,531.82 and 15,346.16 is: 21,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.08 : 38,531.82 = 15,346.16 : x
  2. Step 2: Convert to fraction form
    27,921.08/38,531.82 = 15,346.16/x
  3. Step 3: Cross multiply
    27,921.08x = 38,531.82 × 15,346.16
  4. Step 4: Simplify right side
    27,921.08x = 591,315,474.81
  5. Step 5: Solve for x
    x = 591,315,474.81/27,921.08
  6. Step 6: Final answer
    x = 21,178.10

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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.