Home / 23,188.72-31,950.36-15,723.76

Finding the Fourth Proportional to 23,188.72, 31,950.36 and 15,723.76

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Solution

The fourth proportional to 23,188.72, 31,950.36 and 15,723.76 is: 21,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,188.72 : 31,950.36 = 15,723.76 : x
  2. Step 2: Convert to fraction form
    23,188.72/31,950.36 = 15,723.76/x
  3. Step 3: Cross multiply
    23,188.72x = 31,950.36 × 15,723.76
  4. Step 4: Simplify right side
    23,188.72x = 502,379,792.55
  5. Step 5: Solve for x
    x = 502,379,792.55/23,188.72
  6. Step 6: Final answer
    x = 21,664.83

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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.