Home / 28,658.13-42,973.37-12,013.69

Finding the Fourth Proportional to 28,658.13, 42,973.37 and 12,013.69

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Solution

The fourth proportional to 28,658.13, 42,973.37 and 12,013.69 is: 18,014.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.13 : 42,973.37 = 12,013.69 : x
  2. Step 2: Convert to fraction form
    28,658.13/42,973.37 = 12,013.69/x
  3. Step 3: Cross multiply
    28,658.13x = 42,973.37 × 12,013.69
  4. Step 4: Simplify right side
    28,658.13x = 516,268,685.37
  5. Step 5: Solve for x
    x = 516,268,685.37/28,658.13
  6. Step 6: Final answer
    x = 18,014.74

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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.