Home / 28,830.02-43,246.86-12,186.95

Finding the Fourth Proportional to 28,830.02, 43,246.86 and 12,186.95

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Solution

The fourth proportional to 28,830.02, 43,246.86 and 12,186.95 is: 18,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.02 : 43,246.86 = 12,186.95 : x
  2. Step 2: Convert to fraction form
    28,830.02/43,246.86 = 12,186.95/x
  3. Step 3: Cross multiply
    28,830.02x = 43,246.86 × 12,186.95
  4. Step 4: Simplify right side
    28,830.02x = 527,047,259.54
  5. Step 5: Solve for x
    x = 527,047,259.54/28,830.02
  6. Step 6: Final answer
    x = 18,281.20

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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.