Home / 28,219.44-42,335.12-10,688.88

Finding the Fourth Proportional to 28,219.44, 42,335.12 and 10,688.88

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Solution

The fourth proportional to 28,219.44, 42,335.12 and 10,688.88 is: 16,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.44 : 42,335.12 = 10,688.88 : x
  2. Step 2: Convert to fraction form
    28,219.44/42,335.12 = 10,688.88/x
  3. Step 3: Cross multiply
    28,219.44x = 42,335.12 × 10,688.88
  4. Step 4: Simplify right side
    28,219.44x = 452,515,017.47
  5. Step 5: Solve for x
    x = 452,515,017.47/28,219.44
  6. Step 6: Final answer
    x = 16,035.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.