Home / 22,630.89-31,208.93-13,554.80

Finding the Fourth Proportional to 22,630.89, 31,208.93 and 13,554.80

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Solution

The fourth proportional to 22,630.89, 31,208.93 and 13,554.80 is: 18,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,630.89 : 31,208.93 = 13,554.80 : x
  2. Step 2: Convert to fraction form
    22,630.89/31,208.93 = 13,554.80/x
  3. Step 3: Cross multiply
    22,630.89x = 31,208.93 × 13,554.80
  4. Step 4: Simplify right side
    22,630.89x = 423,030,916.27
  5. Step 5: Solve for x
    x = 423,030,916.27/22,630.89
  6. Step 6: Final answer
    x = 18,692.63

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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.