Home / 13,389.02-20,081.80-3,529.06

Finding the Fourth Proportional to 13,389.02, 20,081.80 and 3,529.06

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Solution

The fourth proportional to 13,389.02, 20,081.80 and 3,529.06 is: 5,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.02 : 20,081.80 = 3,529.06 : x
  2. Step 2: Convert to fraction form
    13,389.02/20,081.80 = 3,529.06/x
  3. Step 3: Cross multiply
    13,389.02x = 20,081.80 × 3,529.06
  4. Step 4: Simplify right side
    13,389.02x = 70,869,877.11
  5. Step 5: Solve for x
    x = 70,869,877.11/13,389.02
  6. Step 6: Final answer
    x = 5,293.13

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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.