Home / 14,031.44-21,069-13,408.16

Finding the Fourth Proportional to 14,031.44, 21,069 and 13,408.16

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Solution

The fourth proportional to 14,031.44, 21,069 and 13,408.16 is: 20,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.44 : 21,069 = 13,408.16 : x
  2. Step 2: Convert to fraction form
    14,031.44/21,069 = 13,408.16/x
  3. Step 3: Cross multiply
    14,031.44x = 21,069 × 13,408.16
  4. Step 4: Simplify right side
    14,031.44x = 282,496,523.04
  5. Step 5: Solve for x
    x = 282,496,523.04/14,031.44
  6. Step 6: Final answer
    x = 20,133.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.