Home / 39,563.85-59,347.70-12,909.80

Finding the Fourth Proportional to 39,563.85, 59,347.70 and 12,909.80

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Solution

The fourth proportional to 39,563.85, 59,347.70 and 12,909.80 is: 19,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,563.85 : 59,347.70 = 12,909.80 : x
  2. Step 2: Convert to fraction form
    39,563.85/59,347.70 = 12,909.80/x
  3. Step 3: Cross multiply
    39,563.85x = 59,347.70 × 12,909.80
  4. Step 4: Simplify right side
    39,563.85x = 766,166,576.17
  5. Step 5: Solve for x
    x = 766,166,576.17/39,563.85
  6. Step 6: Final answer
    x = 19,365.32

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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.