Home / 21,445.94-32,173.20-7,406.48

Finding the Fourth Proportional to 21,445.94, 32,173.20 and 7,406.48

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Solution

The fourth proportional to 21,445.94, 32,173.20 and 7,406.48 is: 11,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.94 : 32,173.20 = 7,406.48 : x
  2. Step 2: Convert to fraction form
    21,445.94/32,173.20 = 7,406.48/x
  3. Step 3: Cross multiply
    21,445.94x = 32,173.20 × 7,406.48
  4. Step 4: Simplify right side
    21,445.94x = 238,289,973.70
  5. Step 5: Solve for x
    x = 238,289,973.70/21,445.94
  6. Step 6: Final answer
    x = 11,111.20

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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.