Home / 53,035.80-79,589.46-21,870.36

Finding the Fourth Proportional to 53,035.80, 79,589.46 and 21,870.36

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Solution

The fourth proportional to 53,035.80, 79,589.46 and 21,870.36 is: 32,820.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,035.80 : 79,589.46 = 21,870.36 : x
  2. Step 2: Convert to fraction form
    53,035.80/79,589.46 = 21,870.36/x
  3. Step 3: Cross multiply
    53,035.80x = 79,589.46 × 21,870.36
  4. Step 4: Simplify right side
    53,035.80x = 1,740,650,142.41
  5. Step 5: Solve for x
    x = 1,740,650,142.41/53,035.80
  6. Step 6: Final answer
    x = 32,820.29

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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.