Home / 22,349.12-30,840.53-12,278.93

Finding the Fourth Proportional to 22,349.12, 30,840.53 and 12,278.93

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Solution

The fourth proportional to 22,349.12, 30,840.53 and 12,278.93 is: 16,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,349.12 : 30,840.53 = 12,278.93 : x
  2. Step 2: Convert to fraction form
    22,349.12/30,840.53 = 12,278.93/x
  3. Step 3: Cross multiply
    22,349.12x = 30,840.53 × 12,278.93
  4. Step 4: Simplify right side
    22,349.12x = 378,688,493.44
  5. Step 5: Solve for x
    x = 378,688,493.44/22,349.12
  6. Step 6: Final answer
    x = 16,944.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.