Home / 28,231.76-42,342.24-10,695.80

Finding the Fourth Proportional to 28,231.76, 42,342.24 and 10,695.80

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Solution

The fourth proportional to 28,231.76, 42,342.24 and 10,695.80 is: 16,041.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.76 : 42,342.24 = 10,695.80 : x
  2. Step 2: Convert to fraction form
    28,231.76/42,342.24 = 10,695.80/x
  3. Step 3: Cross multiply
    28,231.76x = 42,342.24 × 10,695.80
  4. Step 4: Simplify right side
    28,231.76x = 452,884,130.59
  5. Step 5: Solve for x
    x = 452,884,130.59/28,231.76
  6. Step 6: Final answer
    x = 16,041.65

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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.