Home / 28,403.70-42,605.30-12,604.92

Finding the Fourth Proportional to 28,403.70, 42,605.30 and 12,604.92

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Solution

The fourth proportional to 28,403.70, 42,605.30 and 12,604.92 is: 18,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.70 : 42,605.30 = 12,604.92 : x
  2. Step 2: Convert to fraction form
    28,403.70/42,605.30 = 12,604.92/x
  3. Step 3: Cross multiply
    28,403.70x = 42,605.30 × 12,604.92
  4. Step 4: Simplify right side
    28,403.70x = 537,036,398.08
  5. Step 5: Solve for x
    x = 537,036,398.08/28,403.70
  6. Step 6: Final answer
    x = 18,907.27

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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.