Home / 15,741.58-21,729.27-10,438.18

Finding the Fourth Proportional to 15,741.58, 21,729.27 and 10,438.18

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Solution

The fourth proportional to 15,741.58, 21,729.27 and 10,438.18 is: 14,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.58 : 21,729.27 = 10,438.18 : x
  2. Step 2: Convert to fraction form
    15,741.58/21,729.27 = 10,438.18/x
  3. Step 3: Cross multiply
    15,741.58x = 21,729.27 × 10,438.18
  4. Step 4: Simplify right side
    15,741.58x = 226,814,031.53
  5. Step 5: Solve for x
    x = 226,814,031.53/15,741.58
  6. Step 6: Final answer
    x = 14,408.59

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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.