Home / 21,539.84-32,312.21-9,851.54

Finding the Fourth Proportional to 21,539.84, 32,312.21 and 9,851.54

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Solution

The fourth proportional to 21,539.84, 32,312.21 and 9,851.54 is: 14,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,539.84 : 32,312.21 = 9,851.54 : x
  2. Step 2: Convert to fraction form
    21,539.84/32,312.21 = 9,851.54/x
  3. Step 3: Cross multiply
    21,539.84x = 32,312.21 × 9,851.54
  4. Step 4: Simplify right side
    21,539.84x = 318,324,818.48
  5. Step 5: Solve for x
    x = 318,324,818.48/21,539.84
  6. Step 6: Final answer
    x = 14,778.42

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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.