Home / 20,948.63-31,423.24-5,153.66

Finding the Fourth Proportional to 20,948.63, 31,423.24 and 5,153.66

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Solution

The fourth proportional to 20,948.63, 31,423.24 and 5,153.66 is: 7,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.63 : 31,423.24 = 5,153.66 : x
  2. Step 2: Convert to fraction form
    20,948.63/31,423.24 = 5,153.66/x
  3. Step 3: Cross multiply
    20,948.63x = 31,423.24 × 5,153.66
  4. Step 4: Simplify right side
    20,948.63x = 161,944,662.22
  5. Step 5: Solve for x
    x = 161,944,662.22/20,948.63
  6. Step 6: Final answer
    x = 7,730.56

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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.