Home / 31,209.45-46,804.46-10,428.09

Finding the Fourth Proportional to 31,209.45, 46,804.46 and 10,428.09

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Solution

The fourth proportional to 31,209.45, 46,804.46 and 10,428.09 is: 15,638.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,209.45 : 46,804.46 = 10,428.09 : x
  2. Step 2: Convert to fraction form
    31,209.45/46,804.46 = 10,428.09/x
  3. Step 3: Cross multiply
    31,209.45x = 46,804.46 × 10,428.09
  4. Step 4: Simplify right side
    31,209.45x = 488,081,303.32
  5. Step 5: Solve for x
    x = 488,081,303.32/31,209.45
  6. Step 6: Final answer
    x = 15,638.89

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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.