Home / 27,918.44-38,525.45-15,981.60

Finding the Fourth Proportional to 27,918.44, 38,525.45 and 15,981.60

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Solution

The fourth proportional to 27,918.44, 38,525.45 and 15,981.60 is: 22,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.44 : 38,525.45 = 15,981.60 : x
  2. Step 2: Convert to fraction form
    27,918.44/38,525.45 = 15,981.60/x
  3. Step 3: Cross multiply
    27,918.44x = 38,525.45 × 15,981.60
  4. Step 4: Simplify right side
    27,918.44x = 615,698,251.81
  5. Step 5: Solve for x
    x = 615,698,251.81/27,918.44
  6. Step 6: Final answer
    x = 22,053.47

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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.