Home / 21,731.13-32,599.22-7,688.25

Finding the Fourth Proportional to 21,731.13, 32,599.22 and 7,688.25

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Solution

The fourth proportional to 21,731.13, 32,599.22 and 7,688.25 is: 11,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.13 : 32,599.22 = 7,688.25 : x
  2. Step 2: Convert to fraction form
    21,731.13/32,599.22 = 7,688.25/x
  3. Step 3: Cross multiply
    21,731.13x = 32,599.22 × 7,688.25
  4. Step 4: Simplify right side
    21,731.13x = 250,630,914.72
  5. Step 5: Solve for x
    x = 250,630,914.72/21,731.13
  6. Step 6: Final answer
    x = 11,533.27

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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.