Home / 22,246.40-30,703.28-12,813.12

Finding the Fourth Proportional to 22,246.40, 30,703.28 and 12,813.12

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Solution

The fourth proportional to 22,246.40, 30,703.28 and 12,813.12 is: 17,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,246.40 : 30,703.28 = 12,813.12 : x
  2. Step 2: Convert to fraction form
    22,246.40/30,703.28 = 12,813.12/x
  3. Step 3: Cross multiply
    22,246.40x = 30,703.28 × 12,813.12
  4. Step 4: Simplify right side
    22,246.40x = 393,404,811.03
  5. Step 5: Solve for x
    x = 393,404,811.03/22,246.40
  6. Step 6: Final answer
    x = 17,683.98

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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.