Home / 28,555.98-42,844.22-12,759.69

Finding the Fourth Proportional to 28,555.98, 42,844.22 and 12,759.69

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Solution

The fourth proportional to 28,555.98, 42,844.22 and 12,759.69 is: 19,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.98 : 42,844.22 = 12,759.69 : x
  2. Step 2: Convert to fraction form
    28,555.98/42,844.22 = 12,759.69/x
  3. Step 3: Cross multiply
    28,555.98x = 42,844.22 × 12,759.69
  4. Step 4: Simplify right side
    28,555.98x = 546,678,901.69
  5. Step 5: Solve for x
    x = 546,678,901.69/28,555.98
  6. Step 6: Final answer
    x = 19,144.11

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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.