Home / 34,359.90-51,515.55-13,291.80

Finding the Fourth Proportional to 34,359.90, 51,515.55 and 13,291.80

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Solution

The fourth proportional to 34,359.90, 51,515.55 and 13,291.80 is: 19,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,359.90 : 51,515.55 = 13,291.80 : x
  2. Step 2: Convert to fraction form
    34,359.90/51,515.55 = 13,291.80/x
  3. Step 3: Cross multiply
    34,359.90x = 51,515.55 × 13,291.80
  4. Step 4: Simplify right side
    34,359.90x = 684,734,387.49
  5. Step 5: Solve for x
    x = 684,734,387.49/34,359.90
  6. Step 6: Final answer
    x = 19,928.30

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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.