Home / 23,000.70-31,739.67-13,572.30

Finding the Fourth Proportional to 23,000.70, 31,739.67 and 13,572.30

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Solution

The fourth proportional to 23,000.70, 31,739.67 and 13,572.30 is: 18,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,000.70 : 31,739.67 = 13,572.30 : x
  2. Step 2: Convert to fraction form
    23,000.70/31,739.67 = 13,572.30/x
  3. Step 3: Cross multiply
    23,000.70x = 31,739.67 × 13,572.30
  4. Step 4: Simplify right side
    23,000.70x = 430,780,323.14
  5. Step 5: Solve for x
    x = 430,780,323.14/23,000.70
  6. Step 6: Final answer
    x = 18,729.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.