Home / 27,801.13-38,365.69-15,225.88

Finding the Fourth Proportional to 27,801.13, 38,365.69 and 15,225.88

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Solution

The fourth proportional to 27,801.13, 38,365.69 and 15,225.88 is: 21,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.13 : 38,365.69 = 15,225.88 : x
  2. Step 2: Convert to fraction form
    27,801.13/38,365.69 = 15,225.88/x
  3. Step 3: Cross multiply
    27,801.13x = 38,365.69 × 15,225.88
  4. Step 4: Simplify right side
    27,801.13x = 584,151,392.06
  5. Step 5: Solve for x
    x = 584,151,392.06/27,801.13
  6. Step 6: Final answer
    x = 21,011.79

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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.