Home / 35,558.40-53,344.80-12,187.20

Finding the Fourth Proportional to 35,558.40, 53,344.80 and 12,187.20

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Solution

The fourth proportional to 35,558.40, 53,344.80 and 12,187.20 is: 18,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,558.40 : 53,344.80 = 12,187.20 : x
  2. Step 2: Convert to fraction form
    35,558.40/53,344.80 = 12,187.20/x
  3. Step 3: Cross multiply
    35,558.40x = 53,344.80 × 12,187.20
  4. Step 4: Simplify right side
    35,558.40x = 650,123,746.56
  5. Step 5: Solve for x
    x = 650,123,746.56/35,558.40
  6. Step 6: Final answer
    x = 18,283.27

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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.