Home / 27,918.08-38,527.68-15,343.16

Finding the Fourth Proportional to 27,918.08, 38,527.68 and 15,343.16

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Solution

The fourth proportional to 27,918.08, 38,527.68 and 15,343.16 is: 21,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.08 : 38,527.68 = 15,343.16 : x
  2. Step 2: Convert to fraction form
    27,918.08/38,527.68 = 15,343.16/x
  3. Step 3: Cross multiply
    27,918.08x = 38,527.68 × 15,343.16
  4. Step 4: Simplify right side
    27,918.08x = 591,136,358.67
  5. Step 5: Solve for x
    x = 591,136,358.67/27,918.08
  6. Step 6: Final answer
    x = 21,173.96

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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.