Home / 27,918.76-38,527.88-15,344.32

Finding the Fourth Proportional to 27,918.76, 38,527.88 and 15,344.32

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Solution

The fourth proportional to 27,918.76, 38,527.88 and 15,344.32 is: 21,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.76 : 38,527.88 = 15,344.32 : x
  2. Step 2: Convert to fraction form
    27,918.76/38,527.88 = 15,344.32/x
  3. Step 3: Cross multiply
    27,918.76x = 38,527.88 × 15,344.32
  4. Step 4: Simplify right side
    27,918.76x = 591,184,119.64
  5. Step 5: Solve for x
    x = 591,184,119.64/27,918.76
  6. Step 6: Final answer
    x = 21,175.16

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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.