Home / 22,787.46-31,447.70-12,715.94

Finding the Fourth Proportional to 22,787.46, 31,447.70 and 12,715.94

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Solution

The fourth proportional to 22,787.46, 31,447.70 and 12,715.94 is: 17,548.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.46 : 31,447.70 = 12,715.94 : x
  2. Step 2: Convert to fraction form
    22,787.46/31,447.70 = 12,715.94/x
  3. Step 3: Cross multiply
    22,787.46x = 31,447.70 × 12,715.94
  4. Step 4: Simplify right side
    22,787.46x = 399,887,066.34
  5. Step 5: Solve for x
    x = 399,887,066.34/22,787.46
  6. Step 6: Final answer
    x = 17,548.56

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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.