Home / 21,615.35-32,415.23-9,136.34

Finding the Fourth Proportional to 21,615.35, 32,415.23 and 9,136.34

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Solution

The fourth proportional to 21,615.35, 32,415.23 and 9,136.34 is: 13,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.35 : 32,415.23 = 9,136.34 : x
  2. Step 2: Convert to fraction form
    21,615.35/32,415.23 = 9,136.34/x
  3. Step 3: Cross multiply
    21,615.35x = 32,415.23 × 9,136.34
  4. Step 4: Simplify right side
    21,615.35x = 296,156,562.46
  5. Step 5: Solve for x
    x = 296,156,562.46/21,615.35
  6. Step 6: Final answer
    x = 13,701.22

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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.