Home / 31,470.21-47,194.07-10,406.36

Finding the Fourth Proportional to 31,470.21, 47,194.07 and 10,406.36

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Solution

The fourth proportional to 31,470.21, 47,194.07 and 10,406.36 is: 15,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.21 : 47,194.07 = 10,406.36 : x
  2. Step 2: Convert to fraction form
    31,470.21/47,194.07 = 10,406.36/x
  3. Step 3: Cross multiply
    31,470.21x = 47,194.07 × 10,406.36
  4. Step 4: Simplify right side
    31,470.21x = 491,118,482.29
  5. Step 5: Solve for x
    x = 491,118,482.29/31,470.21
  6. Step 6: Final answer
    x = 15,605.82

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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.