Home / 45,329.15-67,970.26-20,347.69

Finding the Fourth Proportional to 45,329.15, 67,970.26 and 20,347.69

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Solution

The fourth proportional to 45,329.15, 67,970.26 and 20,347.69 is: 30,511.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,329.15 : 67,970.26 = 20,347.69 : x
  2. Step 2: Convert to fraction form
    45,329.15/67,970.26 = 20,347.69/x
  3. Step 3: Cross multiply
    45,329.15x = 67,970.26 × 20,347.69
  4. Step 4: Simplify right side
    45,329.15x = 1,383,037,338.11
  5. Step 5: Solve for x
    x = 1,383,037,338.11/45,329.15
  6. Step 6: Final answer
    x = 30,511.00

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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.