Home / 21,415.74-32,136.90-10,323.55

Finding the Fourth Proportional to 21,415.74, 32,136.90 and 10,323.55

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Solution

The fourth proportional to 21,415.74, 32,136.90 and 10,323.55 is: 15,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.74 : 32,136.90 = 10,323.55 : x
  2. Step 2: Convert to fraction form
    21,415.74/32,136.90 = 10,323.55/x
  3. Step 3: Cross multiply
    21,415.74x = 32,136.90 × 10,323.55
  4. Step 4: Simplify right side
    21,415.74x = 331,766,953.52
  5. Step 5: Solve for x
    x = 331,766,953.52/21,415.74
  6. Step 6: Final answer
    x = 15,491.73

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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.