Home / 28,346.94-42,494.12-12,543.56

Finding the Fourth Proportional to 28,346.94, 42,494.12 and 12,543.56

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Solution

The fourth proportional to 28,346.94, 42,494.12 and 12,543.56 is: 18,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.94 : 42,494.12 = 12,543.56 : x
  2. Step 2: Convert to fraction form
    28,346.94/42,494.12 = 12,543.56/x
  3. Step 3: Cross multiply
    28,346.94x = 42,494.12 × 12,543.56
  4. Step 4: Simplify right side
    28,346.94x = 533,027,543.87
  5. Step 5: Solve for x
    x = 533,027,543.87/28,346.94
  6. Step 6: Final answer
    x = 18,803.71

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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.