Home / 22,505.94-31,056.66-12,434.40

Finding the Fourth Proportional to 22,505.94, 31,056.66 and 12,434.40

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Solution

The fourth proportional to 22,505.94, 31,056.66 and 12,434.40 is: 17,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,505.94 : 31,056.66 = 12,434.40 : x
  2. Step 2: Convert to fraction form
    22,505.94/31,056.66 = 12,434.40/x
  3. Step 3: Cross multiply
    22,505.94x = 31,056.66 × 12,434.40
  4. Step 4: Simplify right side
    22,505.94x = 386,170,933.10
  5. Step 5: Solve for x
    x = 386,170,933.10/22,505.94
  6. Step 6: Final answer
    x = 17,158.62

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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.