Home / 27,825.84-38,399.04-15,889.20

Finding the Fourth Proportional to 27,825.84, 38,399.04 and 15,889.20

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Solution

The fourth proportional to 27,825.84, 38,399.04 and 15,889.20 is: 21,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.84 : 38,399.04 = 15,889.20 : x
  2. Step 2: Convert to fraction form
    27,825.84/38,399.04 = 15,889.20/x
  3. Step 3: Cross multiply
    27,825.84x = 38,399.04 × 15,889.20
  4. Step 4: Simplify right side
    27,825.84x = 610,130,026.37
  5. Step 5: Solve for x
    x = 610,130,026.37/27,825.84
  6. Step 6: Final answer
    x = 21,926.74

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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.