Home / 35,531.20-53,390.40-19,748.80

Finding the Fourth Proportional to 35,531.20, 53,390.40 and 19,748.80

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Solution

The fourth proportional to 35,531.20, 53,390.40 and 19,748.80 is: 29,675.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,531.20 : 53,390.40 = 19,748.80 : x
  2. Step 2: Convert to fraction form
    35,531.20/53,390.40 = 19,748.80/x
  3. Step 3: Cross multiply
    35,531.20x = 53,390.40 × 19,748.80
  4. Step 4: Simplify right side
    35,531.20x = 1,054,396,331.52
  5. Step 5: Solve for x
    x = 1,054,396,331.52/35,531.20
  6. Step 6: Final answer
    x = 29,675.22

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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.