Home / 31,619.16-47,428.72-9,448.09

Finding the Fourth Proportional to 31,619.16, 47,428.72 and 9,448.09

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Solution

The fourth proportional to 31,619.16, 47,428.72 and 9,448.09 is: 14,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.16 : 47,428.72 = 9,448.09 : x
  2. Step 2: Convert to fraction form
    31,619.16/47,428.72 = 9,448.09/x
  3. Step 3: Cross multiply
    31,619.16x = 47,428.72 × 9,448.09
  4. Step 4: Simplify right side
    31,619.16x = 448,110,815.14
  5. Step 5: Solve for x
    x = 448,110,815.14/31,619.16
  6. Step 6: Final answer
    x = 14,172.13

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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.