Home / 32,947.94-45,487.78-20,389.70

Finding the Fourth Proportional to 32,947.94, 45,487.78 and 20,389.70

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Solution

The fourth proportional to 32,947.94, 45,487.78 and 20,389.70 is: 28,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,947.94 : 45,487.78 = 20,389.70 : x
  2. Step 2: Convert to fraction form
    32,947.94/45,487.78 = 20,389.70/x
  3. Step 3: Cross multiply
    32,947.94x = 45,487.78 × 20,389.70
  4. Step 4: Simplify right side
    32,947.94x = 927,482,187.87
  5. Step 5: Solve for x
    x = 927,482,187.87/32,947.94
  6. Step 6: Final answer
    x = 28,149.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.