Home / 23,188.64-31,999.68-13,757

Finding the Fourth Proportional to 23,188.64, 31,999.68 and 13,757

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Solution

The fourth proportional to 23,188.64, 31,999.68 and 13,757 is: 18,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,188.64 : 31,999.68 = 13,757 : x
  2. Step 2: Convert to fraction form
    23,188.64/31,999.68 = 13,757/x
  3. Step 3: Cross multiply
    23,188.64x = 31,999.68 × 13,757
  4. Step 4: Simplify right side
    23,188.64x = 440,219,597.76
  5. Step 5: Solve for x
    x = 440,219,597.76/23,188.64
  6. Step 6: Final answer
    x = 18,984.28

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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.