Home / 28,205.65-42,308.52-11,562.72

Finding the Fourth Proportional to 28,205.65, 42,308.52 and 11,562.72

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Solution

The fourth proportional to 28,205.65, 42,308.52 and 11,562.72 is: 17,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.65 : 42,308.52 = 11,562.72 : x
  2. Step 2: Convert to fraction form
    28,205.65/42,308.52 = 11,562.72/x
  3. Step 3: Cross multiply
    28,205.65x = 42,308.52 × 11,562.72
  4. Step 4: Simplify right side
    28,205.65x = 489,201,570.37
  5. Step 5: Solve for x
    x = 489,201,570.37/28,205.65
  6. Step 6: Final answer
    x = 17,344.10

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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.