Home / 28,664.95-42,999.41-12,008.24

Finding the Fourth Proportional to 28,664.95, 42,999.41 and 12,008.24

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Solution

The fourth proportional to 28,664.95, 42,999.41 and 12,008.24 is: 18,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.95 : 42,999.41 = 12,008.24 : x
  2. Step 2: Convert to fraction form
    28,664.95/42,999.41 = 12,008.24/x
  3. Step 3: Cross multiply
    28,664.95x = 42,999.41 × 12,008.24
  4. Step 4: Simplify right side
    28,664.95x = 516,347,372.66
  5. Step 5: Solve for x
    x = 516,347,372.66/28,664.95
  6. Step 6: Final answer
    x = 18,013.20

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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.