Home / 31,995.20-47,972.25-13,288.14

Finding the Fourth Proportional to 31,995.20, 47,972.25 and 13,288.14

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Solution

The fourth proportional to 31,995.20, 47,972.25 and 13,288.14 is: 19,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.20 : 47,972.25 = 13,288.14 : x
  2. Step 2: Convert to fraction form
    31,995.20/47,972.25 = 13,288.14/x
  3. Step 3: Cross multiply
    31,995.20x = 47,972.25 × 13,288.14
  4. Step 4: Simplify right side
    31,995.20x = 637,461,974.12
  5. Step 5: Solve for x
    x = 637,461,974.12/31,995.20
  6. Step 6: Final answer
    x = 19,923.67

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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.