Home / 22,023.30-30,386.40-13,072.80

Finding the Fourth Proportional to 22,023.30, 30,386.40 and 13,072.80

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Solution

The fourth proportional to 22,023.30, 30,386.40 and 13,072.80 is: 18,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,023.30 : 30,386.40 = 13,072.80 : x
  2. Step 2: Convert to fraction form
    22,023.30/30,386.40 = 13,072.80/x
  3. Step 3: Cross multiply
    22,023.30x = 30,386.40 × 13,072.80
  4. Step 4: Simplify right side
    22,023.30x = 397,235,329.92
  5. Step 5: Solve for x
    x = 397,235,329.92/22,023.30
  6. Step 6: Final answer
    x = 18,037.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.