Home / 20,926.95-31,390.68-6,136.16

Finding the Fourth Proportional to 20,926.95, 31,390.68 and 6,136.16

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Solution

The fourth proportional to 20,926.95, 31,390.68 and 6,136.16 is: 9,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.95 : 31,390.68 = 6,136.16 : x
  2. Step 2: Convert to fraction form
    20,926.95/31,390.68 = 6,136.16/x
  3. Step 3: Cross multiply
    20,926.95x = 31,390.68 × 6,136.16
  4. Step 4: Simplify right side
    20,926.95x = 192,618,047.35
  5. Step 5: Solve for x
    x = 192,618,047.35/20,926.95
  6. Step 6: Final answer
    x = 9,204.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.