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Finding the Fourth Proportional to 21,504.40, 32,256.60 and 5,709.40

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Solution

The fourth proportional to 21,504.40, 32,256.60 and 5,709.40 is: 8,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.40 : 32,256.60 = 5,709.40 : x
  2. Step 2: Convert to fraction form
    21,504.40/32,256.60 = 5,709.40/x
  3. Step 3: Cross multiply
    21,504.40x = 32,256.60 × 5,709.40
  4. Step 4: Simplify right side
    21,504.40x = 184,165,832.04
  5. Step 5: Solve for x
    x = 184,165,832.04/21,504.40
  6. Step 6: Final answer
    x = 8,564.10

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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.