Home / 21,735.11-32,580.60-12,355.74

Finding the Fourth Proportional to 21,735.11, 32,580.60 and 12,355.74

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Solution

The fourth proportional to 21,735.11, 32,580.60 and 12,355.74 is: 18,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.11 : 32,580.60 = 12,355.74 : x
  2. Step 2: Convert to fraction form
    21,735.11/32,580.60 = 12,355.74/x
  3. Step 3: Cross multiply
    21,735.11x = 32,580.60 × 12,355.74
  4. Step 4: Simplify right side
    21,735.11x = 402,557,580.99
  5. Step 5: Solve for x
    x = 402,557,580.99/21,735.11
  6. Step 6: Final answer
    x = 18,521.08

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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.