Home / 31,611.89-47,417.36-9,425.36

Finding the Fourth Proportional to 31,611.89, 47,417.36 and 9,425.36

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Solution

The fourth proportional to 31,611.89, 47,417.36 and 9,425.36 is: 14,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.89 : 47,417.36 = 9,425.36 : x
  2. Step 2: Convert to fraction form
    31,611.89/47,417.36 = 9,425.36/x
  3. Step 3: Cross multiply
    31,611.89x = 47,417.36 × 9,425.36
  4. Step 4: Simplify right side
    31,611.89x = 446,925,404.04
  5. Step 5: Solve for x
    x = 446,925,404.04/31,611.89
  6. Step 6: Final answer
    x = 14,137.89

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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.