Home / 35,515.48-53,257.60-18,871.60

Finding the Fourth Proportional to 35,515.48, 53,257.60 and 18,871.60

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Solution

The fourth proportional to 35,515.48, 53,257.60 and 18,871.60 is: 28,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.48 : 53,257.60 = 18,871.60 : x
  2. Step 2: Convert to fraction form
    35,515.48/53,257.60 = 18,871.60/x
  3. Step 3: Cross multiply
    35,515.48x = 53,257.60 × 18,871.60
  4. Step 4: Simplify right side
    35,515.48x = 1,005,056,124.16
  5. Step 5: Solve for x
    x = 1,005,056,124.16/35,515.48
  6. Step 6: Final answer
    x = 28,299.10

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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.