Home / 34,381.20-51,541.80-13,335.60

Finding the Fourth Proportional to 34,381.20, 51,541.80 and 13,335.60

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Solution

The fourth proportional to 34,381.20, 51,541.80 and 13,335.60 is: 19,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,381.20 : 51,541.80 = 13,335.60 : x
  2. Step 2: Convert to fraction form
    34,381.20/51,541.80 = 13,335.60/x
  3. Step 3: Cross multiply
    34,381.20x = 51,541.80 × 13,335.60
  4. Step 4: Simplify right side
    34,381.20x = 687,340,828.08
  5. Step 5: Solve for x
    x = 687,340,828.08/34,381.20
  6. Step 6: Final answer
    x = 19,991.76

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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.