Home / 39,385.20-59,063.40-13,090.80

Finding the Fourth Proportional to 39,385.20, 59,063.40 and 13,090.80

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Solution

The fourth proportional to 39,385.20, 59,063.40 and 13,090.80 is: 19,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,385.20 : 59,063.40 = 13,090.80 : x
  2. Step 2: Convert to fraction form
    39,385.20/59,063.40 = 13,090.80/x
  3. Step 3: Cross multiply
    39,385.20x = 59,063.40 × 13,090.80
  4. Step 4: Simplify right side
    39,385.20x = 773,187,156.72
  5. Step 5: Solve for x
    x = 773,187,156.72/39,385.20
  6. Step 6: Final answer
    x = 19,631.41

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1.5x scale

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.