Home / 31,362.40-47,043.60-10,302.40

Finding the Fourth Proportional to 31,362.40, 47,043.60 and 10,302.40

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Solution

The fourth proportional to 31,362.40, 47,043.60 and 10,302.40 is: 15,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.40 : 47,043.60 = 10,302.40 : x
  2. Step 2: Convert to fraction form
    31,362.40/47,043.60 = 10,302.40/x
  3. Step 3: Cross multiply
    31,362.40x = 47,043.60 × 10,302.40
  4. Step 4: Simplify right side
    31,362.40x = 484,661,984.64
  5. Step 5: Solve for x
    x = 484,661,984.64/31,362.40
  6. Step 6: Final answer
    x = 15,453.60

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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.