Home / 22,817.98-31,503.63-20,423.80

Finding the Fourth Proportional to 22,817.98, 31,503.63 and 20,423.80

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Solution

The fourth proportional to 22,817.98, 31,503.63 and 20,423.80 is: 28,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,817.98 : 31,503.63 = 20,423.80 : x
  2. Step 2: Convert to fraction form
    22,817.98/31,503.63 = 20,423.80/x
  3. Step 3: Cross multiply
    22,817.98x = 31,503.63 × 20,423.80
  4. Step 4: Simplify right side
    22,817.98x = 643,423,838.39
  5. Step 5: Solve for x
    x = 643,423,838.39/22,817.98
  6. Step 6: Final answer
    x = 28,198.11

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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.