Home / 20,945.63-31,423.45-6,154.22

Finding the Fourth Proportional to 20,945.63, 31,423.45 and 6,154.22

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Solution

The fourth proportional to 20,945.63, 31,423.45 and 6,154.22 is: 9,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.63 : 31,423.45 = 6,154.22 : x
  2. Step 2: Convert to fraction form
    20,945.63/31,423.45 = 6,154.22/x
  3. Step 3: Cross multiply
    20,945.63x = 31,423.45 × 6,154.22
  4. Step 4: Simplify right side
    20,945.63x = 193,386,824.46
  5. Step 5: Solve for x
    x = 193,386,824.46/20,945.63
  6. Step 6: Final answer
    x = 9,232.80

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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.