Home / 21,692.55-29,926.88-14,136.13

Finding the Fourth Proportional to 21,692.55, 29,926.88 and 14,136.13

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Solution

The fourth proportional to 21,692.55, 29,926.88 and 14,136.13 is: 19,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.55 : 29,926.88 = 14,136.13 : x
  2. Step 2: Convert to fraction form
    21,692.55/29,926.88 = 14,136.13/x
  3. Step 3: Cross multiply
    21,692.55x = 29,926.88 × 14,136.13
  4. Step 4: Simplify right side
    21,692.55x = 423,050,197.09
  5. Step 5: Solve for x
    x = 423,050,197.09/21,692.55
  6. Step 6: Final answer
    x = 19,502.10

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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.