Home / 27,918.18-38,526.60-15,342.66

Finding the Fourth Proportional to 27,918.18, 38,526.60 and 15,342.66

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Solution

The fourth proportional to 27,918.18, 38,526.60 and 15,342.66 is: 21,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.18 : 38,526.60 = 15,342.66 : x
  2. Step 2: Convert to fraction form
    27,918.18/38,526.60 = 15,342.66/x
  3. Step 3: Cross multiply
    27,918.18x = 38,526.60 × 15,342.66
  4. Step 4: Simplify right side
    27,918.18x = 591,100,524.76
  5. Step 5: Solve for x
    x = 591,100,524.76/27,918.18
  6. Step 6: Final answer
    x = 21,172.60

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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.