Home / 27,830.24-38,416.56-16,655.84

Finding the Fourth Proportional to 27,830.24, 38,416.56 and 16,655.84

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Solution

The fourth proportional to 27,830.24, 38,416.56 and 16,655.84 is: 22,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,830.24 : 38,416.56 = 16,655.84 : x
  2. Step 2: Convert to fraction form
    27,830.24/38,416.56 = 16,655.84/x
  3. Step 3: Cross multiply
    27,830.24x = 38,416.56 × 16,655.84
  4. Step 4: Simplify right side
    27,830.24x = 639,860,076.71
  5. Step 5: Solve for x
    x = 639,860,076.71/27,830.24
  6. Step 6: Final answer
    x = 22,991.54

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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.