Home / 40,285.51-60,437.67-12,205.78

Finding the Fourth Proportional to 40,285.51, 60,437.67 and 12,205.78

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Solution

The fourth proportional to 40,285.51, 60,437.67 and 12,205.78 is: 18,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,285.51 : 60,437.67 = 12,205.78 : x
  2. Step 2: Convert to fraction form
    40,285.51/60,437.67 = 12,205.78/x
  3. Step 3: Cross multiply
    40,285.51x = 60,437.67 × 12,205.78
  4. Step 4: Simplify right side
    40,285.51x = 737,688,903.73
  5. Step 5: Solve for x
    x = 737,688,903.73/40,285.51
  6. Step 6: Final answer
    x = 18,311.52

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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.