Home / 21,491.40-32,217.66-7,637.16

Finding the Fourth Proportional to 21,491.40, 32,217.66 and 7,637.16

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Solution

The fourth proportional to 21,491.40, 32,217.66 and 7,637.16 is: 11,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.40 : 32,217.66 = 7,637.16 : x
  2. Step 2: Convert to fraction form
    21,491.40/32,217.66 = 7,637.16/x
  3. Step 3: Cross multiply
    21,491.40x = 32,217.66 × 7,637.16
  4. Step 4: Simplify right side
    21,491.40x = 246,051,424.25
  5. Step 5: Solve for x
    x = 246,051,424.25/21,491.40
  6. Step 6: Final answer
    x = 11,448.83

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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.