Home / 21,408.60-32,118.48-8,924.52

Finding the Fourth Proportional to 21,408.60, 32,118.48 and 8,924.52

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Solution

The fourth proportional to 21,408.60, 32,118.48 and 8,924.52 is: 13,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,408.60 : 32,118.48 = 8,924.52 : x
  2. Step 2: Convert to fraction form
    21,408.60/32,118.48 = 8,924.52/x
  3. Step 3: Cross multiply
    21,408.60x = 32,118.48 × 8,924.52
  4. Step 4: Simplify right side
    21,408.60x = 286,642,017.13
  5. Step 5: Solve for x
    x = 286,642,017.13/21,408.60
  6. Step 6: Final answer
    x = 13,389.11

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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.