Home / 21,459.90-32,197.14-19,389.54

Finding the Fourth Proportional to 21,459.90, 32,197.14 and 19,389.54

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Solution

The fourth proportional to 21,459.90, 32,197.14 and 19,389.54 is: 29,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.90 : 32,197.14 = 19,389.54 : x
  2. Step 2: Convert to fraction form
    21,459.90/32,197.14 = 19,389.54/x
  3. Step 3: Cross multiply
    21,459.90x = 32,197.14 × 19,389.54
  4. Step 4: Simplify right side
    21,459.90x = 624,287,733.92
  5. Step 5: Solve for x
    x = 624,287,733.92/21,459.90
  6. Step 6: Final answer
    x = 29,090.90

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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.