Home / 21,801.28-32,710.20-11,405.92

Finding the Fourth Proportional to 21,801.28, 32,710.20 and 11,405.92

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Solution

The fourth proportional to 21,801.28, 32,710.20 and 11,405.92 is: 17,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801.28 : 32,710.20 = 11,405.92 : x
  2. Step 2: Convert to fraction form
    21,801.28/32,710.20 = 11,405.92/x
  3. Step 3: Cross multiply
    21,801.28x = 32,710.20 × 11,405.92
  4. Step 4: Simplify right side
    21,801.28x = 373,089,924.38
  5. Step 5: Solve for x
    x = 373,089,924.38/21,801.28
  6. Step 6: Final answer
    x = 17,113.21

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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.