Home / 21,778.72-32,667.36-9,466.72

Finding the Fourth Proportional to 21,778.72, 32,667.36 and 9,466.72

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Solution

The fourth proportional to 21,778.72, 32,667.36 and 9,466.72 is: 14,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.72 : 32,667.36 = 9,466.72 : x
  2. Step 2: Convert to fraction form
    21,778.72/32,667.36 = 9,466.72/x
  3. Step 3: Cross multiply
    21,778.72x = 32,667.36 × 9,466.72
  4. Step 4: Simplify right side
    21,778.72x = 309,252,750.26
  5. Step 5: Solve for x
    x = 309,252,750.26/21,778.72
  6. Step 6: Final answer
    x = 14,199.77

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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.