Home / 31,969.79-47,921.24-10,902.45

Finding the Fourth Proportional to 31,969.79, 47,921.24 and 10,902.45

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Solution

The fourth proportional to 31,969.79, 47,921.24 and 10,902.45 is: 16,342.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.79 : 47,921.24 = 10,902.45 : x
  2. Step 2: Convert to fraction form
    31,969.79/47,921.24 = 10,902.45/x
  3. Step 3: Cross multiply
    31,969.79x = 47,921.24 × 10,902.45
  4. Step 4: Simplify right side
    31,969.79x = 522,458,868.53
  5. Step 5: Solve for x
    x = 522,458,868.53/31,969.79
  6. Step 6: Final answer
    x = 16,342.27

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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.