Home / 21,513.09-29,692.33-13,746.94

Finding the Fourth Proportional to 21,513.09, 29,692.33 and 13,746.94

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Solution

The fourth proportional to 21,513.09, 29,692.33 and 13,746.94 is: 18,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513.09 : 29,692.33 = 13,746.94 : x
  2. Step 2: Convert to fraction form
    21,513.09/29,692.33 = 13,746.94/x
  3. Step 3: Cross multiply
    21,513.09x = 29,692.33 × 13,746.94
  4. Step 4: Simplify right side
    21,513.09x = 408,178,625.28
  5. Step 5: Solve for x
    x = 408,178,625.28/21,513.09
  6. Step 6: Final answer
    x = 18,973.50

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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.