Home / 31,485.36-47,228.84-10,425.36

Finding the Fourth Proportional to 31,485.36, 47,228.84 and 10,425.36

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Solution

The fourth proportional to 31,485.36, 47,228.84 and 10,425.36 is: 15,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.36 : 47,228.84 = 10,425.36 : x
  2. Step 2: Convert to fraction form
    31,485.36/47,228.84 = 10,425.36/x
  3. Step 3: Cross multiply
    31,485.36x = 47,228.84 × 10,425.36
  4. Step 4: Simplify right side
    31,485.36x = 492,377,659.38
  5. Step 5: Solve for x
    x = 492,377,659.38/31,485.36
  6. Step 6: Final answer
    x = 15,638.30

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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.