Home / 21,421.26-32,137.56-8,937.14

Finding the Fourth Proportional to 21,421.26, 32,137.56 and 8,937.14

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Solution

The fourth proportional to 21,421.26, 32,137.56 and 8,937.14 is: 13,408.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.26 : 32,137.56 = 8,937.14 : x
  2. Step 2: Convert to fraction form
    21,421.26/32,137.56 = 8,937.14/x
  3. Step 3: Cross multiply
    21,421.26x = 32,137.56 × 8,937.14
  4. Step 4: Simplify right side
    21,421.26x = 287,217,712.29
  5. Step 5: Solve for x
    x = 287,217,712.29/21,421.26
  6. Step 6: Final answer
    x = 13,408.07

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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.