Home / 27,918.14-38,527.02-15,342.89

Finding the Fourth Proportional to 27,918.14, 38,527.02 and 15,342.89

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Solution

The fourth proportional to 27,918.14, 38,527.02 and 15,342.89 is: 21,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.14 : 38,527.02 = 15,342.89 : x
  2. Step 2: Convert to fraction form
    27,918.14/38,527.02 = 15,342.89/x
  3. Step 3: Cross multiply
    27,918.14x = 38,527.02 × 15,342.89
  4. Step 4: Simplify right side
    27,918.14x = 591,115,829.89
  5. Step 5: Solve for x
    x = 591,115,829.89/27,918.14
  6. Step 6: Final answer
    x = 21,173.18

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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.