Home / 31,384.30-47,071.26-10,324.60

Finding the Fourth Proportional to 31,384.30, 47,071.26 and 10,324.60

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Solution

The fourth proportional to 31,384.30, 47,071.26 and 10,324.60 is: 15,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.30 : 47,071.26 = 10,324.60 : x
  2. Step 2: Convert to fraction form
    31,384.30/47,071.26 = 10,324.60/x
  3. Step 3: Cross multiply
    31,384.30x = 47,071.26 × 10,324.60
  4. Step 4: Simplify right side
    31,384.30x = 485,991,931.00
  5. Step 5: Solve for x
    x = 485,991,931.00/31,384.30
  6. Step 6: Final answer
    x = 15,485.19

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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.