Home / 22,912.80-34,336.40-13,031.20

Finding the Fourth Proportional to 22,912.80, 34,336.40 and 13,031.20

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Solution

The fourth proportional to 22,912.80, 34,336.40 and 13,031.20 is: 19,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,912.80 : 34,336.40 = 13,031.20 : x
  2. Step 2: Convert to fraction form
    22,912.80/34,336.40 = 13,031.20/x
  3. Step 3: Cross multiply
    22,912.80x = 34,336.40 × 13,031.20
  4. Step 4: Simplify right side
    22,912.80x = 447,444,495.68
  5. Step 5: Solve for x
    x = 447,444,495.68/22,912.80
  6. Step 6: Final answer
    x = 19,528.15

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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.