Home / 23,136.96-31,929.12-12,526.80

Finding the Fourth Proportional to 23,136.96, 31,929.12 and 12,526.80

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Solution

The fourth proportional to 23,136.96, 31,929.12 and 12,526.80 is: 17,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,136.96 : 31,929.12 = 12,526.80 : x
  2. Step 2: Convert to fraction form
    23,136.96/31,929.12 = 12,526.80/x
  3. Step 3: Cross multiply
    23,136.96x = 31,929.12 × 12,526.80
  4. Step 4: Simplify right side
    23,136.96x = 399,969,700.42
  5. Step 5: Solve for x
    x = 399,969,700.42/23,136.96
  6. Step 6: Final answer
    x = 17,287.05

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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.