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Finding the Fourth Proportional to 22,370.40, 30,854.40 and 16,400.16

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Solution

The fourth proportional to 22,370.40, 30,854.40 and 16,400.16 is: 22,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,370.40 : 30,854.40 = 16,400.16 : x
  2. Step 2: Convert to fraction form
    22,370.40/30,854.40 = 16,400.16/x
  3. Step 3: Cross multiply
    22,370.40x = 30,854.40 × 16,400.16
  4. Step 4: Simplify right side
    22,370.40x = 506,017,096.70
  5. Step 5: Solve for x
    x = 506,017,096.70/22,370.40
  6. Step 6: Final answer
    x = 22,619.94

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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.