Home / 27,918-38,526.86-15,342.84

Finding the Fourth Proportional to 27,918, 38,526.86 and 15,342.84

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Solution

The fourth proportional to 27,918, 38,526.86 and 15,342.84 is: 21,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918 : 38,526.86 = 15,342.84 : x
  2. Step 2: Convert to fraction form
    27,918/38,526.86 = 15,342.84/x
  3. Step 3: Cross multiply
    27,918x = 38,526.86 × 15,342.84
  4. Step 4: Simplify right side
    27,918x = 591,111,448.68
  5. Step 5: Solve for x
    x = 591,111,448.68/27,918
  6. Step 6: Final answer
    x = 21,173.13

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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.