Home / 22,557.53-31,130.46-12,998.84

Finding the Fourth Proportional to 22,557.53, 31,130.46 and 12,998.84

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Solution

The fourth proportional to 22,557.53, 31,130.46 and 12,998.84 is: 17,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.53 : 31,130.46 = 12,998.84 : x
  2. Step 2: Convert to fraction form
    22,557.53/31,130.46 = 12,998.84/x
  3. Step 3: Cross multiply
    22,557.53x = 31,130.46 × 12,998.84
  4. Step 4: Simplify right side
    22,557.53x = 404,659,803.67
  5. Step 5: Solve for x
    x = 404,659,803.67/22,557.53
  6. Step 6: Final answer
    x = 17,939.02

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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.