Home / 21,623.58-32,440.68-9,136.89

Finding the Fourth Proportional to 21,623.58, 32,440.68 and 9,136.89

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Solution

The fourth proportional to 21,623.58, 32,440.68 and 9,136.89 is: 13,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.58 : 32,440.68 = 9,136.89 : x
  2. Step 2: Convert to fraction form
    21,623.58/32,440.68 = 9,136.89/x
  3. Step 3: Cross multiply
    21,623.58x = 32,440.68 × 9,136.89
  4. Step 4: Simplify right side
    21,623.58x = 296,406,924.69
  5. Step 5: Solve for x
    x = 296,406,924.69/21,623.58
  6. Step 6: Final answer
    x = 13,707.58

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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.