Home / 22,622.40-31,211.42-13,666.50

Finding the Fourth Proportional to 22,622.40, 31,211.42 and 13,666.50

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Solution

The fourth proportional to 22,622.40, 31,211.42 and 13,666.50 is: 18,855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.40 : 31,211.42 = 13,666.50 : x
  2. Step 2: Convert to fraction form
    22,622.40/31,211.42 = 13,666.50/x
  3. Step 3: Cross multiply
    22,622.40x = 31,211.42 × 13,666.50
  4. Step 4: Simplify right side
    22,622.40x = 426,550,871.43
  5. Step 5: Solve for x
    x = 426,550,871.43/22,622.40
  6. Step 6: Final answer
    x = 18,855.24

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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.