Home / 20,946.12-31,424.21-6,154.71

Finding the Fourth Proportional to 20,946.12, 31,424.21 and 6,154.71

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Solution

The fourth proportional to 20,946.12, 31,424.21 and 6,154.71 is: 9,233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.12 : 31,424.21 = 6,154.71 : x
  2. Step 2: Convert to fraction form
    20,946.12/31,424.21 = 6,154.71/x
  3. Step 3: Cross multiply
    20,946.12x = 31,424.21 × 6,154.71
  4. Step 4: Simplify right side
    20,946.12x = 193,406,868.76
  5. Step 5: Solve for x
    x = 193,406,868.76/20,946.12
  6. Step 6: Final answer
    x = 9,233.54

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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.