Home / 27,825.48-38,400.14-15,888.62

Finding the Fourth Proportional to 27,825.48, 38,400.14 and 15,888.62

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Solution

The fourth proportional to 27,825.48, 38,400.14 and 15,888.62 is: 21,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.48 : 38,400.14 = 15,888.62 : x
  2. Step 2: Convert to fraction form
    27,825.48/38,400.14 = 15,888.62/x
  3. Step 3: Cross multiply
    27,825.48x = 38,400.14 × 15,888.62
  4. Step 4: Simplify right side
    27,825.48x = 610,125,368.13
  5. Step 5: Solve for x
    x = 610,125,368.13/27,825.48
  6. Step 6: Final answer
    x = 21,926.86

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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.