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Finding the Fourth Proportional to 21,606.70, 32,410.05 and 9,124.75

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Solution

The fourth proportional to 21,606.70, 32,410.05 and 9,124.75 is: 13,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.70 : 32,410.05 = 9,124.75 : x
  2. Step 2: Convert to fraction form
    21,606.70/32,410.05 = 9,124.75/x
  3. Step 3: Cross multiply
    21,606.70x = 32,410.05 × 9,124.75
  4. Step 4: Simplify right side
    21,606.70x = 295,733,603.74
  5. Step 5: Solve for x
    x = 295,733,603.74/21,606.70
  6. Step 6: Final answer
    x = 13,687.13

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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.