Home / 21,846.60-32,769.90-13,579.20

Finding the Fourth Proportional to 21,846.60, 32,769.90 and 13,579.20

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Solution

The fourth proportional to 21,846.60, 32,769.90 and 13,579.20 is: 20,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.60 : 32,769.90 = 13,579.20 : x
  2. Step 2: Convert to fraction form
    21,846.60/32,769.90 = 13,579.20/x
  3. Step 3: Cross multiply
    21,846.60x = 32,769.90 × 13,579.20
  4. Step 4: Simplify right side
    21,846.60x = 444,989,026.08
  5. Step 5: Solve for x
    x = 444,989,026.08/21,846.60
  6. Step 6: Final answer
    x = 20,368.80

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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.