Home / 28,525.76-42,798.77-12,729.35

Finding the Fourth Proportional to 28,525.76, 42,798.77 and 12,729.35

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Solution

The fourth proportional to 28,525.76, 42,798.77 and 12,729.35 is: 19,098.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.76 : 42,798.77 = 12,729.35 : x
  2. Step 2: Convert to fraction form
    28,525.76/42,798.77 = 12,729.35/x
  3. Step 3: Cross multiply
    28,525.76x = 42,798.77 × 12,729.35
  4. Step 4: Simplify right side
    28,525.76x = 544,800,685.59
  5. Step 5: Solve for x
    x = 544,800,685.59/28,525.76
  6. Step 6: Final answer
    x = 19,098.55

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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.