Home / 22,970.80-34,456.20-11,281.60

Finding the Fourth Proportional to 22,970.80, 34,456.20 and 11,281.60

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Solution

The fourth proportional to 22,970.80, 34,456.20 and 11,281.60 is: 16,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.80 : 34,456.20 = 11,281.60 : x
  2. Step 2: Convert to fraction form
    22,970.80/34,456.20 = 11,281.60/x
  3. Step 3: Cross multiply
    22,970.80x = 34,456.20 × 11,281.60
  4. Step 4: Simplify right side
    22,970.80x = 388,721,065.92
  5. Step 5: Solve for x
    x = 388,721,065.92/22,970.80
  6. Step 6: Final answer
    x = 16,922.40

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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.