Home / 23,126-31,913.96-12,515.72

Finding the Fourth Proportional to 23,126, 31,913.96 and 12,515.72

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Solution

The fourth proportional to 23,126, 31,913.96 and 12,515.72 is: 17,271.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126 : 31,913.96 = 12,515.72 : x
  2. Step 2: Convert to fraction form
    23,126/31,913.96 = 12,515.72/x
  3. Step 3: Cross multiply
    23,126x = 31,913.96 × 12,515.72
  4. Step 4: Simplify right side
    23,126x = 399,426,187.45
  5. Step 5: Solve for x
    x = 399,426,187.45/23,126
  6. Step 6: Final answer
    x = 17,271.74

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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.