Home / 28,031.22-38,682.59-15,284.50

Finding the Fourth Proportional to 28,031.22, 38,682.59 and 15,284.50

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Solution

The fourth proportional to 28,031.22, 38,682.59 and 15,284.50 is: 21,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.22 : 38,682.59 = 15,284.50 : x
  2. Step 2: Convert to fraction form
    28,031.22/38,682.59 = 15,284.50/x
  3. Step 3: Cross multiply
    28,031.22x = 38,682.59 × 15,284.50
  4. Step 4: Simplify right side
    28,031.22x = 591,243,970.43
  5. Step 5: Solve for x
    x = 591,243,970.43/28,031.22
  6. Step 6: Final answer
    x = 21,092.34

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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.