Home / 27,721.88-38,256.21-14,975.06

Finding the Fourth Proportional to 27,721.88, 38,256.21 and 14,975.06

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Solution

The fourth proportional to 27,721.88, 38,256.21 and 14,975.06 is: 20,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.88 : 38,256.21 = 14,975.06 : x
  2. Step 2: Convert to fraction form
    27,721.88/38,256.21 = 14,975.06/x
  3. Step 3: Cross multiply
    27,721.88x = 38,256.21 × 14,975.06
  4. Step 4: Simplify right side
    27,721.88x = 572,889,129.51
  5. Step 5: Solve for x
    x = 572,889,129.51/27,721.88
  6. Step 6: Final answer
    x = 20,665.59

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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.