Home / 20,947.63-31,426.45-6,156.22

Finding the Fourth Proportional to 20,947.63, 31,426.45 and 6,156.22

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Solution

The fourth proportional to 20,947.63, 31,426.45 and 6,156.22 is: 9,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947.63 : 31,426.45 = 6,156.22 : x
  2. Step 2: Convert to fraction form
    20,947.63/31,426.45 = 6,156.22/x
  3. Step 3: Cross multiply
    20,947.63x = 31,426.45 × 6,156.22
  4. Step 4: Simplify right side
    20,947.63x = 193,468,140.02
  5. Step 5: Solve for x
    x = 193,468,140.02/20,947.63
  6. Step 6: Final answer
    x = 9,235.80

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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.