Home / 23,687.12-32,686.48-13,615.56

Finding the Fourth Proportional to 23,687.12, 32,686.48 and 13,615.56

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Solution

The fourth proportional to 23,687.12, 32,686.48 and 13,615.56 is: 18,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,687.12 : 32,686.48 = 13,615.56 : x
  2. Step 2: Convert to fraction form
    23,687.12/32,686.48 = 13,615.56/x
  3. Step 3: Cross multiply
    23,687.12x = 32,686.48 × 13,615.56
  4. Step 4: Simplify right side
    23,687.12x = 445,044,729.63
  5. Step 5: Solve for x
    x = 445,044,729.63/23,687.12
  6. Step 6: Final answer
    x = 18,788.47

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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.