Home / 28,237.47-38,967.09-15,662.22

Finding the Fourth Proportional to 28,237.47, 38,967.09 and 15,662.22

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Solution

The fourth proportional to 28,237.47, 38,967.09 and 15,662.22 is: 21,613.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.47 : 38,967.09 = 15,662.22 : x
  2. Step 2: Convert to fraction form
    28,237.47/38,967.09 = 15,662.22/x
  3. Step 3: Cross multiply
    28,237.47x = 38,967.09 × 15,662.22
  4. Step 4: Simplify right side
    28,237.47x = 610,311,136.34
  5. Step 5: Solve for x
    x = 610,311,136.34/28,237.47
  6. Step 6: Final answer
    x = 21,613.52

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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.